Q

# Use suitable identities to find the following product: (i) (x + 4 ) (x + 10)

1.(i) Use suitable identities to find the following product:

(i)    $(x + 4) ( x + 10)$

Views

We will use identity

$(x+a)(x+b)=x^2+(a+b)x+ab$

Put   $a = 4 \ \ and \ \ b = 10$

$(x+4)(x+10)= x^2+(10+4)x+10\times 4$

$= x^2+14x+40$

Therefore, $(x + 4) ( x + 10)$  is equal to  $x^2+14x+40$

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