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kipiarov [429]
4 years ago
13

SO i need help urgently. 15 points!

Mathematics
2 answers:
Tom [10]4 years ago
5 0

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

Aloiza [94]4 years ago
3 0

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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