Factorise
(viii) -18 + 11x - x²
(ix) 8a² - 22ab + 15b²
Answers
Answered by
1
Answer:
18 + 11x - x²
- x²+9x+2x-18
-x(x-9) +2(x-9)
(x-9) (-x+2)
Answered by
1
Answer:
8.
=-x2+11x-18
=x2-9x+2x-18
=x(x-9)+2(x-9)
=(x+2) (x-9)
Step-by-step explanation:
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