Q23 of 137 Page 102

Factorize:

x2 – 7x – 30

x2 – 7x – 30


Now, first we have to find out the numbers whose-


Sum = - 7 and


Product = - 30


The numbers are 10 and 3,


So,


x2 – 7x – 30


= x2 – 10x + 3x – 30


= x(x – 10) + 3(x – 10)


= (x – 10)(x + 3)


More from this chapter

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 22

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