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Verdich [7]
3 years ago
14

Victoria was given the expression 5x - 4x^2-1+X-8x^2+7 and asked to

Mathematics
2 answers:
Nadya [2.5K]3 years ago
7 0

Answer:  -6(2x+1)(x-1)

Step-by-step explanation:

Given the expression in the form 5x-4x^2-1+x-8x^2+7, we know that Victoria can simplify it by adding the like terms:

-12x^2+6x+6

She can also factor out -6:

-6(2x^2-x-1)

Now, she needs  to factor the coefficient of the second term rewrite it as (1-2), then:

-6(2x^2+(1-2)x-1)

-6(2x^2-2x+x-1)

Now she needs to group the terms as following:

-6[(2x^2-2x)+(x-1)]

And factor out 2x:

-6[2x(x-1)+(x-1)]

Finally, she has to factor out (x-1). Therefore, she gets:

-6(2x+1)(x-1)

vfiekz [6]3 years ago
3 0

Answer:

-12x^2+6x+6

this is the answer for ap ex

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sleet_krkn [62]
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we can rewrite the problem as:
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Now, time to use that old method we learned in middle school:
FOIL. (Firsts, Outers, Inners, and Lasts)

FOIL can help us greatly in this scenario.
Let's start by multiplying the 'Firsts' together:
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Now, lets to the 'Outers':
4x * -5y = <em>-20xy</em> 

Next, we can multiply the 'Inners':
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Finally, let's do the 'Lasts':
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Now, we can take the products of these equations from FOIL and combine like terms. We have: 16x^2, -20xy, -20xy, and 25y^2.
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The final equation (product of (4x-5y)^2) is:
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Hope I helped! If any of my math is wrong, please report and let me know!
Have a good one.
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Step-by-step explanation:

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A biologist studying the relationship between tilapia and catfish in a pond finds that the ratio of tilapia to catfish is 6:20.
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Step-by-step explanation:

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