(2x+5)(3x-7)=(1-2x)(1+2x)+(5x+3)(2x-5)

Question

(2x+5)(3x-7)=(1-2x)(1+2x)+(5x+3)(2x-5)

Answer 1

6X^2 - 14X + 15X - 35 = 1 - 4X^2 + 10X^2 - 25X + 6X - 15 
6X^2 + X - 35 = 6X^2 - 19X - 14 
X + 19X = - 14 + 35 
20X = 21 
X = 1,05