find using identities (x+3)(x+11)=
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Answer:
Step-by-step explanation:x²+(a+b)x +ab
X²+(3+11)x+3*11
X²+14x + 33
Answered by
0
Answer:
x² + 14x + 33
Step-by-step explanation:
(x+3)(x+11)
= ((x+7)-4)((x+7)+4)
= (x+7)² - 4² ..... { (a-b)(a+b) = a²- b² }
= x²+49+14x -16 ...... { (a+b)² = a² + b² + 2ab }
= x² + 14x + 33
hope it helps : )
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