Question

(6+2x)^2=(4+2x)^2+x^2 find x​

Answer 1

Step-by-step explanation:

36+4x²+24x=16+4x²+16x+x²

16-36+5x²-4x²+16x-24x=0

-20+x²+8x=9

x²+8x-20=0

x²+10x-2x-20=0

x(x+10)-2(x+10)=0

(x+10)(x-2)=0

x=-10 or x=2