Question

a2+2ab+b2 if a=2 and b=-3​

Answer 1

Answer:

${a}^{2} + 2ab + {b}^{2} \\ a = 2 \: and \: b = ( - 3) \\ {2}^{2} + 2(2)( - 3) + {( - 3)}^{2} \\ 4 + ( - 12) + 9 \\ 9 + 4 - 12 \\ 13 - 12 = 1$

The correct answer is 1.

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Answer 2

Answer:

1

Step-by-step explanation:

a²+2ab+b² = (2)² + (2)(2)(-3) + (-3)²

=> 4 - 12 + 9 = 1

ALSO

(a²+b²+2ab) = (a+b)²

=> (2+ (-3) )² = (-1)² = 1