Factorise 2a²-14a+36
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2a²-14a+36
2a²- (18-4)a + 36
2a²- 18a -4a + 36
2a(a-9) - 4(a-9)
(a-9) (2a-4)
Answered by
1
Step-by-step explanation:
2a²-14a+36
=2a²-(18-4)a+36
=2a²-18a+4a+36
=2a(a-9)+4(a+9)
=2a(a-9)-4(a-9)
=(a-9)(2a-4)
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