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3 years ago

Factor this trinomial completely. -12x^2+45x+12

Mathematics

2 answers:

Amanda [17]3 years ago

5 0

Step-by-step Answer:

Step 1:

Extract factor(s) common to all terms.

In this case, the HCF is 3, so the expression is written

-12x^2+45x+12 = -3(4x^2-15x-4)

The negative sign was also exrracted to give a positive leading coefficient, which is easier to work with.

Step 2, group the coefficient in such a way that there is a common factor.

Leaving the factor -4 for the moment, and concentrate on the coefficients in parentheses, write the original expression as

4x^2 - 15x -4

= 4x^2 -16x

+ x -4

= 4x*(x-4) + 1*(x-4)

extract (x-4) as a common factor

= (x-4)(4x+1)

Step 3:

Combine all the factors to get

-3(x-4)(4x+1)

=3(4-x)(4x+1)

as the complete factoring of the given expression.

snow_tiger [21]3 years ago

5 0

Answer: -12x^2 + 45x + 12

-3(4x^2 - 15x - 4)

-3(4x + 1)(x - 4)

Step-by-step explanation:

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3 years ago

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nikitadnepr [17]

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3 years ago

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Lesechka [4]

Answer:

10.5 %

<u>Skills needed: Financial Math Essentials</u>

Step-by-step explanation:

1) First, before getting started, let's assume the price of the product is $x$ . This variable will be used a lot throughout the problem ( $x$ ).

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This means that it would be: $x+\frac{30}{100}x = x+0.3x=1.3x$

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3 years ago

Group the terms with variables on one side of the equal sign and simplify.

Zepler [3.9K]

Answer:

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Step-by-step explanation:

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Subtract 10p on both sides,

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2 years ago

Read 2 more answers

A right rectangular prism with dimensions of 2 cm 5 cm and 10 cm is shown.

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Answer:

What is the similar in the United States to the Canadian Charter of Rights and Freedoms?

Step-by-step explanation:

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though it does not have a diagram in this situation it does not matter the order you put the numbers in. any way you multiply them you will get the same answer/volume.

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3 years ago