Question

Add the following

$1) {x}^{2} \: \: \: \: \: 4 {x}^{2} \: \: \: \: \: - 7 {x}^{2}$
$2) {x}^{2} y \: \: \: \: 5 {x}^{2} y \: \: \: \: - 7 {x}^{2} y$
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Answer 1

Answer:

1. -2x²

2. - x²y

Hope it helps you:)

Answer 2

Answer:

The question should be like 1) x^2+4x^2+(-7x^2)

2) x^2+5x^2y+(-7x^2y)

the answer of

1) x^2+4x^2+(-7x^2) = -2x^2

2) x^2+5x^2y+(-7x^2y)= -x^2y