Question

1. Factorise: a) x² + 13 x + 40
b) x² - 10 x + 24
2. Factorise : a) 81x4 - y
b) 2x4 - 32
SCHOC
3. Factorise x + 7x+ 10 and divide by (x+5) Y
KUWAIT
4. Factorise and divide :
(x - 1)(x-2)(x² – 9x + 14) = (x-7)( x² – 3x + 2)
[ Hint : Factorise (x² – 9x + 14) and ( x² – 3x + 2)]

Answer 1

Answer:

(a) x^2 + 13x + 40 can be factored as follows:

x^2 + 13x + 40

=> x^2 + 8x + 5x + 40

=> x(x + 8) + 5(x + 8)

=> (x + 5)(x + 8)

The factorized form of x^2 + 13x + 40 is (x + 5)(x + 8)

(b)This can be factorised as

x^2+6x+4x+24

=> x(x+6)+4(x+6)

=> (x+6) (x+4)

(c)Given that

=>

x+5x2+7x+10=x+5x2x+5x+2x+10

=>x+5x(x+5)+2(x+5)

=>x+5(x+5)(x+2)

=>1x+2=x+5(x+5)(x+2)

=>1x+2

Step-by-step explanation:

sorry I have done only three I hope this three will help you!!!

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