The square of 2x minus 5x + 2 = 0, find X

The square of 2x minus 5x + 2 = 0, find X

2x²-5x+2=0
(2x-1)(x-2)=0
X = 1 / 2 or x = 2

The square of 5x plus 2x is - 3

5x+2x²=-3
2x²+5x+3=0
(x+1)(2x+3)=0
∴x=-1 x=-3/2

X-3 / 5x is equal to 2 / 9. How to solve it correctly

Two fifths x equals two ninths
X is two ninths times five fifths

110 grams per square meter, door width 1.5 meters, unit price 28 yuan / kg, how to convert to how much per meter?
Please list the conversion method in detail,

It's OK to calculate the weight of one meter long. The area of one meter long is 1.5 × 1 = 1.5 square meters,
Weight: 1.5 × 110 = 165G = 0.165kg
Price per meter: 28 × 0.165 = 4.62 yuan

A trapezoid is composed of three identical equilateral triangles. What is the ratio of the perimeter of each equilateral triangle to the perimeter of the trapezoid
It's a formula

Triangle perimeter: trapezoid perimeter
=3：3×3-4
=3：5

Is an angle an axisymmetric figure
Why is an axisymmetric figure only when it is rotated 180 degrees

Yes. Fold along the middle line, the two ends can overlap. Don't believe it? Try it! Make sure you succeed!

If | x-2006 | + | y + 2007 | + | z-2008 | = 0, then x + y + Z =?

|x-2006|+ |y +2007|+ |z-2008|=0 |x-2006|=0 |y+2007|=0 |z-2008|=0 x=2006,y=-2007,z=2008 x+y+z=2006-2007+2008=2007

If vector AB and vector CD are collinear, then points a, B, C and D are on the same line

No, it is possible that line AB is parallel to line CD~

In △ ABC, ab = 2cm, BC = 4cm, what is the ratio of height ad to ce of △ ABC

According to the title: ab * ce / 2 = BC * ad / 2
AB*CE=BC*AD
2CE=4AD
CE=2AD

The odd function f (x) defined on (- 1,1) is a decreasing function, f (1-A) + F (1-3a)

From F (1-A) + F (1-3a)