Question

12. Factorise each of the following expressions:

(a) 7√2y2 - 10y - 4√2

(b) (m + 2n)2+ 101(m + 2n) + 100
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Answer 1

Answer:

(a) 7√2y²-10y-4√2

7√2y²-14y+4y-4√2

7√2y(y-√2)+4(y-√2)

(7√2y+4)(y-√2)

(b)(m+2n)²+101(m+2n)+100

(m+2n)²+1(m+2n)+100(m+2n)+100

(m+2n)(m+2n+1)+100(m+2n+1)

(m+2n+100)(m+2n+1)

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