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Mathematics
27 December, 14:32
Multiply.
(3b-5) (7b+1)
Simplify your answer.
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Yair
27 December, 15:02
0
It would be 21b² - 32b - 5
Step-by-step explanation:
By using the FOIL method, you can simplify the equation.
The Foil Method is ac + ad + bc + bd, or First, Outer, Inner, Last.
First, you multiply the first term in each bracket.
3b * 7b = 21b²
Next, you multiply the outer term in each bracket.
3b * 1 = 3b
Then, you multiply the inner term in each bracket.
-5 * 7b = - 35b
After that, you multiply the last term in each bracket.
-5 * 1 = - 5
Lastly, you combine like terms.
21b² + 3b - 35b - 5 - --> 21b² - 32b - 5
21b² - 32b - 5 would be your answer, since you cannot simplify the equation anymore.
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