Question

expand (2 X + 3 y) square using identity​

Answer 1

Step-by-step explanation:

as we know

$(a + b) {}^{2} = a {}^{2} + b { }^{2} + 2ab$

same as here

$2x {}^{2} + 3y {}^{2} + 2 \times 2x \times 3y \\ 2x {}^{2} + 3y {}^{2} + 12xy$

Answer 2

Answer:

(2x+3y)² = 4x²+9y²+12

Step-by-step explanation:

${(a + b)}^{2} = {a}^{2} + {b}^{2} + 2ab$

$= > {(2x + 3y)}^{2} = 4 {x}^{2} + 9 {y}^{2} + (2 \times2 \times 3)$

$= > {(2x + 3y)}^{2} = 4 \times {x}^{2} + 9 {y}^{2} + 12$

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