Expand (x + 13)(x + 20) by using suitable identity.
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Answer:
x^2+33x+260
Step-by-step explanation:
Using Identity:
(x+a)(x+b)=x^2+(a+b)x+ab
(x+13)(x+20)=x^2+(13+20)x+(13×20)
=x^2+(33)x+260
=x^2+33x+260
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