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ahrayia [7]
3 years ago
7

Solve for x. Enter the solutions from least to greatest. 4x^2 + 40x + 84 = 0

Mathematics
2 answers:
crimeas [40]3 years ago
6 0

Answer:

x= -3 , -7

Step-by-step explanation:

erica [24]3 years ago
5 0

Answer:

Step-by-step explanation:

4x^2+40x+84=0

i divide first by 4 the whole equation

x^2+10x+21=0

we use the quadratic formula to solve it

and you will get x=-3, and -7

from least to greatest

-7 ,-3

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Hi there! Hopefully this helps!

-------------------------------------------------------------------------------------------------------

<h2 /><h2>Answer: 18</h2><h2>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~</h2><h2 />

First we need to substitute the value of the variable into the expression.

b^{2}+3(2x-y) = 3^{2} + 3 (2(4)-5) .

Now we need to solve 3^{2} + 3 (2(4)-5).

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

3^{2} + 3 (2(4)-5)

First, calculate 3 to the power of 2 and get 9.

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Multiply 3 and 3 to get 9.

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<h2>And the answer is, you guessed it, 18!</h2>

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