Please answer ! Polynomials and Factoring problems. Thank you!

Mathematics

1 answer:

Ratling [72]2 years ago

4 0

Answer: The answer to your first question is b^2+2b-8. You second answer is y^2-4y+3.

Step-by-step explanation: Now, these questions deal with the FOIL method commonly taught in schools. The FOIL method is to turn factored binomials back into quadratics. Let's first go over what FOIL means.
F - First. So you multiply the first terms in each set of parenthesis, so b times b and y times y make b squared and y squared.
O - Outer. Multiply the two outer terms together, so b times -2 and y times -3. Remeber to pay attention to your signs when you multiply during these probelms!
I- Inner. Multiply the two inner terms together. so 4 times b and -1 times y. Again, make sure the signs are incorporated!
L - Last. Multiply the last terms in the binomials. So 4 times -2 and -1 times -3.

Now that we have our numbers, we have expanded quadratics that look like these:
b^2 -2b+4b-8 and y^2-3y-y+3

Now combine the two middle terms into +2b and -4y, and your answers are b^2+2b-8 and y^2-4y+3.

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mina [271]

All you need to do is add the miles from Eaton to Baxter and from Baxter to Wellington to get your answer...

42 + 37 = 79

Now we need to add the fractions

$\frac{1}{2} + \frac{4}{5} = ...
$

To add we need a common denominator.
2 and 5 can both go into 10, so that will be a our common denominator.
Now you have...
$\frac{5}{10} + \frac{8}{10} = \frac{14}{10}$
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add that to the 79 we got earlier ...

The toal and final answer is $80 \frac{2}{5}$ miles !
Hope I helped and remember to vote this as the brainliest answer ! :)

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Step-by-step explanation:

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