Algebra 5
1 mark · EasyFactorise the following quadratic expression:
Work this out on paper, then compare with the answer and worked solution below. With a free account you can submit written answers for marking.
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(x + 4)(x + 7)
Also accept: (x + 7)(x + 4)
Common mistakes: (x + 14)(x - 2)
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Marking points
B1 · 1 mark · Writes correct factorised form: (x + 4)(x + 7) or (x + 7)(x + 4)
Worked solution
Look for two numbers that multiply to 28 and add to 11: 4 and 7.