Question

a) (c-x)^2 b) (-c-4)^2 v) (6c+7)^2 g) (5c-9x)^2 d) (-c^2+3x^4)^2

Answer 1

= c²-2cx+x²
= c²-8c+16
= 36c²+84c+49
= 25c²-90cx+81x²
= 9x⁸-12x⁴c²+c⁴