GCSE Maths Practice: algebraic-proof

Question 2 of 9

Practice difference of squares formula.

\( \text{Prove that } (3x - 4)(3x + 4) = 9x^2 - 16. \)

Choose one option:

Multiply each term carefully and simplify.

The formula \((a-b)(a+b)=a^2-b^2\) applies here.