2 years ago

Factorise: a^2 + 8a - 20

2 answers:

6 0

Which two numbers add up to 88 and multiply to −20?
−2 and 10

Rewrite the expression using the above:

Answer:
(a−2)(a+10)

amm18122 years ago

6 0

You would use the quadratic formula or graph it to find your factors. Your factors are:

(x+10)(x-2)

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