Question

(i)2-a-a^2
(ii)-6x+x^2+9
(iii) 16-8x+x^2 factorise​

Answer 1

Answer:

1:-

-(a^2+a-2). [use middle term splitting]

-(a^2+2a-a-2)

-{a(a+2)-1(a+2)]

-(a-1)(a+2)

(1-a)(a+2)

2:-

it can be written as:-

x^2-6x+9

x^2-3x-3x+9

x(x-3)-3(x-3)

(x-3)(x-3)

3:-

similarly,

x^2-8x+16

x^2-4x-4x+16

x(x-4)-4(x-4)

(x-4)(x-4)

hope it helps

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