Question

(2x+7)²=(2x-5)*(2x+5) помогите решить пожалуйста))

Answer 1

( 2x + 7 )^2 = ( 2x - 5 )( 2x + 5 )
4x^2 + 28x + 49 = 4x^2 - 25
28x = - 49 - 25
X = - 74 : 28
X = - 2 18/28
X = - 2 9/14

Answer 2

(2х+7)*=(2х-5)(2х+5)
4х²+28х+49=4х2-25
28х+49=-25
28х=-25-49
28х=-74
Х=-74:28
Х=-37:14
Х=-2.64