Question

4(x+3y)^2-28(x+3y)+49​

Answer 1

4(x+3y)^2-28 (x+3y)+49

4 (x^2+9y^2)-28x-84y+49

4x^2+36y^2-28x-84y+49

Answer 2

$\huge\mathbb\green{ANSWER!!!!}$

$4 ({x + 9y})^{2} - 28(x + 3y) + 49 \\ \\ 4( {x}^{2} + {9y}^{2} ) - 28(x + 3y) + 49 \\ \\ {4x}^{2} + {9y}^{2} - 28x - 84y + 49$

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