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7. Factorisation
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Q6 of 137 Page 101

Factorize:

4y2 + 20y + 25

Given;


4y2 + 20y + 25


By using the formula (a + b)2 = a2 + 2ab + b2


We get,


= (2y)2 + 2 × 2y × 5 + (5)2


= (2y + 5)2


More from this chapter

All 137 →
4

Factorize:

9 + 6z + z2

5

Factorize:

x2 + 6ax + 9a2

7

Factorize:

36a2 + 36a + 9

8

Factorize:

9m2 + 24m + 16

Questions · 137
7. Factorisation
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