Respuesta :
Answer:
-a² + 2ab + b² is your answer, or C).
Step-by-step explanation:
b(a + b) -a (a - b)
Distribute b to (a + b), and -a to (a - b)
b(a + b) = ab + b²
-a(a - b) = -a² + ab
Simplify. Combine like terms.
(-a² + ab) + (ab + b²) = -a² + 2ab + b²
-a² + 2ab + b² is your answer, or C).
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Answer:
-a^2 +2ab +b^2
Step-by-step explanation:
b ( a + b ) - a ( a - b )
Distribute
ba +b*b -a*a +a*b
ab +b^2 -a^2 +ab
Combine like terms
-a^2 +2ab +b^2