i) Factorise x2-18x-40
Answers
Answered by
15
Step-by-step explanation:
x²-18x-40
= x²-(20-2)x-40
= x²-20x+2x-40
= x(x-20)+2(x-20)
= (x-20)(x+2)
Answered by
0
Answer:
hope the above answer helps you
Step-by-step explanation:
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