GCSE Maths Practice: simplifying-expressions

Question 10 of 10

Factor common terms and check by expanding the expression.

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\( \begin{array}{l}\text{Which of the following are true for the expression } 3x(x-2)+4x(x-2)?\end{array} \)

Select all correct options:

\( 3x(x - 2) + 4x(x - 2) = 7x(x - 2) \) \( 3x(x - 2) + 4x(x - 2) = 7x^2 - 14x \) \( 3x(x - 2) + 4x(x - 2) = 7x^2 - 2x \)

Always look for common factors before expanding. Check results carefully.

When terms share a common factor, factor it out first, then optionally expand to verify.