factorisation x2-16x-80
with process
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Answer:
hi
Step-by-step explanation:
X2 - 16X - 80
X2 - (20 - 4)X - 80
X2 - 20X + 4X - 80
X(X - 20) + 4(X - 20)
(X - 20)(X + 4)
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