class 9 th chapter polynomial
Q use suitable identities to find the following products
a - (x+4)(x+10)
b-(x+8)(x-10)
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Answer:
Identity= (a+b)(a+b)=a²+b²+2ab
Explanation
A)(x+4)(x+10)
x²+10x+4x+40
x²+14x+40
B) (x+8)(x-10)
x²-10x+8x-80x
x²-2x-80x
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