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49x^(2)+14x+1...

49x^(2)+14x+1

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(4x - 7)^(2) = ? A. 4x^(2) - 56x +49 B. 4x^(2) - 14 x +49 C. 16 x^(2) +14 x +49 D. 16 x^(2) - 56x +49

Factorise 49x^(2) - 16y^(2) .

If x=3 and y=5 then verify: (7x+11y)^(2)=49x^(2)+154xy+121y^(2)

Which of the following expressions is equivalent to 49x^(2) + 81 ?

Factories: x ^(2) + 14x + 49

Factorise the expression using the identity a ^(2) + 2 ab + b ^(2) = (a + b) ^(2) x ^(2) + 14x + 49