Algebra 1ChallengeFoundations ShareFoundations · Challenge problemEvaluate a2−2ab+b2 \;a^{2} - 2ab + b^{2}\;a2−2ab+b2 when a=−12a = -\dfrac{1}{2}a=−21 and b=32b = \dfrac{3}{2}b=23.Check Show answer Walk through it step by step Practice more like this Review this concept