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Ostrovityanka [42]

2 years ago

5

What is thr answer of (a-b) (a+2b)

1 answer:

kari74 [83]2 years ago

3 0

Answer:

Step-by-step explanation:

Use FOIL method

F -> First

O Outside

I inside

L Last

(a - b)(a + 2b)= a*a + a *2b + (-b)*a + (-b)*2b

= a² + <u>2ab - ab</u> - 2b²

Combine like terms

= a² + ab - 2b²

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