Factorization factor 9-24 (X-Y) + 16 (X-Y) square

Factorization factor 9-24 (X-Y) + 16 (X-Y) square

=[4 (X-Y) - 3] square
=(4x-4y-3) square

If we know that the square of 9x minus 16 equals 0 and the third power of y plus 27 equals 0, then the value of X + y is zero

9x²-16=0
(3x+4)(3x-4)=0
x1=-4/3, x2=4/3
y³+27=0
y³=-27
y=-3
∴x+y=-4/3+(-3)=-13/3
Or x + y = 4 / 3 + (- 3) = - 5 / 3

X & sup2; + 5Y & sup2; - 4xy + 6y + 9 = 0, find the Y power of X

x^2-4xy+5y^2-6y+9=0
(x^2-4xy+4y^2)+(y^2-6y+9)=0
(x-2y)^2+(y-3)^2=0
y-3=0
y=3
x-2y=0
x=6
The Y power of x = 6 ^ 3 = 216

Given that x2 = Y3 = Z4, then the value of x2 − 2Y2 + 3z2xy + 2yz + 3zx is______ ．

Let x = 2K, y = 3k, z = 4K, then the original formula = 4k2 − 18k2 + 48k26k2 + 24k2 + 24k2 = 1727

There are 50 boys and girls in class 6 (1). One third of the boys are more than one fifth of the girls. How many boys and girls are there in class 6 (1)?

50 people in total
How many people should it be
There are x boys
1/3x-6=(50-x)1/5
1/3x+1/5x=10+6
8/15x=16
x=30
Male 30, female 50-30 = 20

5x^2-4y+xy-20x

5x^2-4y+xy-20x
=5x^2-20x-4y+xy
=5x(x-4)-y(4-x)
=5x(x-4)+y(x-4)
=(x-4)(5x+y)

The number of female students in the art group of experimental primary school is 80% of that of male students, among which there are 10 more male students than female students. How many male and female students are there in the art group?

If x is set for boys, then 80% X for girls. If there are ten more boys than girls, then 20% x equals 10, then x equals 50

What is the square root of 0.02

The square root of 0.02 is approximately equal to 0.141 or -0.141

The sum of the three numbers of a, B and C is 280. A is three times of B and B is 1.5 times of C. what are the three numbers of a, B and C

The number of people in group C: 280 / (1 + 1 * 1.5 + 1 * 1.5 * 3) = 40
Number of people in Party B: 40 * 1.5 = 60
Number of a: 60 * 3 = 180

If_ (a_ 5) It's negative, so a_ Is 5 greater than or less than zero?

If you mean absolute value, you can't be sure, either is possible; if it's bracket, it's less than zero