Q. If m2+p2=x and 4mp=y, which of the following is equivalent to 4x+2y?Choose 1 answer:(A) (2m+p)2(B) (2m+2p)2(C) (4m+2p)2(D) (4m+8p)2
Given Equations: We are given two equations:1. m2+p2=x2. 4mp=yWe need to find an equivalent expression for 4x+2y using these equations.
Express 4x: First, let's express 4x in terms of m and p using the first equation:4x=4(m2+p2)
Express 2y: Now, let's express 2y in terms of m and p using the second equation:2y=2(4mp)
Combine Expressions: Combine the expressions for 4x and 2y: 4x+2y=4(m2+p2)+2(4mp)
Simplify Expression: Simplify the expression by distributing the constants: 4x+2y=4m2+4p2+8mp
Factor Expression: Now, let's try to factor this expression to match one of the answer choices. We are looking for a perfect square since all the answer choices are in the form of a squared binomial.
Identify Perfect Square: We notice that 4m2+4p2+8mp can be written as (2m+2p)2 because:(\(2\)m + \(2\)p)^\(2\) = (\(2\)m)^\(2\) + \(2\)\times(\(2\)m)\times(\(2\)p) + (\(2\)p)^\(2\)\(\newline\) = \(4\)m^\(2\) + \(8\)mp + \(4\)p^\(2\)Which matches our expression for 4x+2y.
Final Equivalent Expression: Therefore, the equivalent expression for 4x+2y is (2m+2p)2, which corresponds to answer choice (B).