Question

expand (x+3)(x+7)
class 9 polynomial
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Answer 1

Answer:

x^2+6x+21

Step-by-step explanation:

(x+3)(x+7)

=x(x+3)+3(x+7)

=x^2+3x+3x+21

=x^2+6x+21

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Answer 2

Step by step explanation :

$(x + 3)(x + 7) \\ x {}^{2} + 10x + 21$

x(x+7) + 3(x+7).

x²+7x+3x+21.

x²+10x+21.

Hope it helps you.!!

Please mark it as brainliest.!!!

Please mark it as brainliest.!!!