Question

Evaluate (4x + y)2 by suitable identity

Answer 1

Answer:

as by applying identity

$(a + b) {}^{2} = a { }^{2} + b {}^{2} + 2ab$

so the identity will be

$(4x + y) {}^{2} =$

$= (4x) {}^{2} + (y) {}^{2} + 2(4x)(y)$

$(16x {}^{2}) + (y {)}^{2} + 8xy$

$i \: hope \: it \: will \: be \: the \: right \: one \:$

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Answer 2

Step-by-step explanation:

Identity

(a+b)^2=a^2+2ab+b^2

(4x+y)^2=(4x)^+2(4x)(y)+(y)^2

=16x^2+8xy+y^2