factorise x+7x-18
please help...
Answers
Answered by
4
Answer:
x+7x-18=0
8x-18=0
8x=18
x=18/8
x=9/4
Answered by
1
Step-by-step explanation:
x^2+7x-18=x^2+9x- 2x-18
=x (x+9)-2 (x+9)
=(x+9)(x-2)
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