Question

$(x + y) {?}^{2}$
$(x - y) {?}^{2}$
$x { - y {?}^{2} }^{2}$
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Answer 1

Answer:

(x + y)² = x² + 2xy + y².

(x - y)² = x² - 2xy + y².

Step-by-step explanation:

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