Question

4x square - 40 x + a square minus 40 x

Answer 1

X is equal to 4x²

given,

4x²-40x+a²-40x

now,

4x(x-10)+4x²-40x=0

4x(x-10)+4x(x-10)=0

(4x+4x)(x-10)=0

so,

8x=0. ,x-10=0

X=0. ,X=10