Expand and simplify (x − 4)(2x + 3y)^2

Answer: 4x3 + 12x2y + 9xy2 - 16x2 - 48xy - 36y2

DH

Related Maths GCSE answers

All answers ▸

Aditi, Becky and Cali collect coins. Aditi has 6 more coins than Becky. Cali has 1 less coin than Aditi. Altogether they have 71 coins. How many coins do they each have? Show all your working.


Prove that the product of 3 consecutive integers is divisible by 6


How do I factorise a quadratic equation?


The point P has coordinates (3, 4) The point Q has coordinates (a, b) A line perpendicular to PQ is given by the equation 3x + 2y = 7 Find an expression for b in terms of a.