Expand : 〖( 2x+3y )〗^2 = ____ + 2 × ( 2x ) × ( 3y ) + 〖( 3y )〗^2
= 〖4x〗^2 + _____〖 + 9y〗^2
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Step-by-step explanation:
(2x+3y)²
= (2x)² + 2×(2x)×(3y) + (3y)²
= 4x² + 12xy + 9y²
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