Question

factorise (a) x^2-7x+6. (b) 4x^2-(9y^2+6y+1)

Answer 1

1.
$(x - 6)(x - 1)$
2.
$(2x - 3y - 1)(2x + 3y + 1)$

Answer 2

X^2-7x+6
= 6=1×6
2×3
X^(6+1)x+6
x^2-6x-1x+6
x(x-6)-1(x-6)
(x-6) (x-1)