Thank you (factorization and simplification) 1, factorization: x ^ - 1= Note: because the symbol cannot be typed, it is replaced by ^ where ^ is n 2. Simplification: [(x + H) ^ - x ^] / X Note: because the symbol cannot be typed, it is replaced by ^ and ^ is 3 3. Simplify 1 / (x ^ - a ^underx + radical) * (x ^ - a ^under1 + x ^ / radical) Note 1: because the symbol cannot be typed, it is replaced by ^ and ^ is 2 Note 2: x ^ - A ^, x ^ - A ^, are all under the root

Thank you (factorization and simplification) 1, factorization: x ^ - 1= Note: because the symbol cannot be typed, it is replaced by ^ where ^ is n 2. Simplification: [(x + H) ^ - x ^] / X Note: because the symbol cannot be typed, it is replaced by ^ and ^ is 3 3. Simplify 1 / (x ^ - a ^underx + radical) * (x ^ - a ^under1 + x ^ / radical) Note 1: because the symbol cannot be typed, it is replaced by ^ and ^ is 2 Note 2: x ^ - A ^, x ^ - A ^, are all under the root

1. X ^ n-1 = (x-1) [x ^ (n-1) + x ^ (n-2) +... + X + 1] 2. What is h? If it is h, then [(x + H) ^ 3-x ^ 3] / x = (x ^ 3 + 3H * x ^ 2 + 3H ^ 2 * x + H ^ 3-x ^ 3) / x = 3H * x + 3H ^ 2 + (H ^ 3) / X3. Is the second factor in the original formula 1 + [x ^ 2 / under the root sign (x ^ 2-A ^ 2)] or (1 + X ^ 2) / under the root sign (x ^ 2-A ^ 2)

Factorization of (X-Y + 1) (2x + Y-2)
Factorization, RT
Wrong 2x ^ 2-xy-y ^ 2 + 3y-2 factorization,

Answer: 2x ^ 2-xy-y ^ 2 + 3y-2 is a quadratic equation of one variable about X. the discriminant = (- y) ^ 2-4 * 2 * (- y ^ 2 + 3y-2) = y ^ 2 + 8y ^ 2-24y + 16 = 9y ^ 2-24y + 16 = (3y-4) ^ 2 is x = [y ± (3y-4)] / (2 * 2) x = Y-1 or 2x = - y + 2, so: 2x ^ 2-xy-y ^ 2 + 3y-2 = [x - (Y-1)] * [2x - (...)

The existence and equality of the left and right limits of F (x) at x0 is the () condition for the continuity of F (x) at x0

Necessary but not sufficient conditions
besides,
F (x0) exists and is equal to the limit value of F (x) at x0

(3 / 1 / 4 + 6 / 2 / 3 + 1 / 3 / 4 + 8 / 1 / 3) * (2-7 / 20) =? Simple calculation

Hello
(3/1/4+6/2/3+1/3/4+8/1/3)*(2-7/20)
=(10+10)x33/20
=20x33/20
=33
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Given that the equation of circle O is x2 + y2 = 9, find the trajectory equation of the midpoint P of the chord passing through point a (1,2)

Let P (x, y) be connected with OP, then op ⊥ BC (2) when x ≠ 0, Kop · KAP = - 1, that is, YX · y − 2x − 1 = - 1, that is, X2 + y2-x-2y = 0 Point a (1,2) is the solution of the equation The trajectory equation of the midpoint P of the chord passing through point a (1,2) in the circle

How to calculate 3600 / 25 simply

3600÷25
=36×（100÷25）
=36×4
=144

It is known that hyperbola x ^ 4 / 4-y ^ 2 / 2 = 1 and m (1,1) line L pass through point m and hyperbola intersect at two points a and B. if M is exactly the midpoint of line AB, try to find the equation of line L

This is the hyperbola equation? This is the hyperbola equation? This is the hyperbola equation? It should be like this: the following is the following: X \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\and

X-3 out of 8 is equal to 1 out of 4 to solve the equation

Three out of eight is one out of four
Five out of eight equals one out of four
X = 1 / 4 divided by 5 / 8
X = 2 / 5
come on!

Let the image of two quadratic functions be symmetric with respect to x = 1, and the expression of one function y = the square of X + 2x-1, then what is the expression of the other function

Method 1: find the vertex (- 1, - 2), then its symmetric point (3, - 2) about x = 1 is another vertex, and the opening direction is the same. So let the analytic formula of one be y = (x-3) ^ 2-2 = x ^ 2-6x + 7. Method 2: you can also use f (x) = f (2-x) to find the analytic formula. Method 3: let (x, y) be any point on another function, then (x, y)

Simple calculation: 2-3 / 13 △ 9 / 26-2 / 3