5
(a) Multiply out - OCR - GCSE Maths - Question 5 - 2017 - Paper 1
Question 5
5
(a) Multiply out.
3x(x + 2y)
(b) Solve.
(i) 7x = 28
(ii) \( \frac{x}{3} = 9 \)
Worked Solution & Example Answer:5
(a) Multiply out - OCR - GCSE Maths - Question 5 - 2017 - Paper 1
Multiply out.
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To multiply out the expression, distribute the term 3x across the binomial (x+2y):
3x(x+2y)=3x2+6xy
Thus, the final answer is:
3x2+6xySolve. (i) 7x = 28
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To solve for x, divide both sides of the equation by 7:
x=728=4Solve. (ii) \( \frac{x}{3} = 9 \)
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To solve for x, multiply both sides by 3:
x=9×3=27Join the GCSE students using SimpleStudy...
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