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VladimirAG [237]
4 years ago
15

Please help me . factor. X^+2x-35

Mathematics
2 answers:
Shtirlitz [24]4 years ago
4 0

Factoring <span> x2+2x-35</span> 

The first term is, <span> <span>x2</span> </span> its coefficient is <span> 1 </span>.
The middle term is, <span> +2x </span> its coefficient is <span> 2 </span>.
The last term, "the constant", is <span> -35 </span>

Step-1 : Multiply the coefficient of the first term by the constant <span> <span> 1</span> • -35 = -35</span> 

Step-2 : Find two factors of  -35  whose sum equals the coefficient of the middle term, which is  <span> 2 </span>.

<span><span>     -35   +   1   =   -34</span><span>     -7   +   5   =   -2</span><span>     -5   +   7   =   2   That's it</span></span>


Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above,  -5  and  7 
                     <span>x2 - 5x</span> + 7x - 35

Step-4 : Add up the first 2 terms, pulling out like factors :
                    x • (x-5)
              Add up the last 2 terms, pulling out common factors :
                    7 • (x-5)
Step-5 : Add up the four terms of step 4 :
                    (x+7)  •  (x-5)
             Which is the desired factorization

Final result : (x + 7) • (x - 5) <span>
</span>
alexgriva [62]4 years ago
3 0
There are two solutions possible
x=7
x=-5
hope this helps
if wrong sorry.
should be right

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2-5/q=16
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A shopper is standing on level ground 800 feet from the base of a 250 foot tall department store the shopper looks up and sees a
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Answer:

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Step-by-step explanation:

From the ΔABC

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Therefore the elevation to the top of the building from the point on the ground where the shopper is standing is = 17.35°

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4 years ago
Which ordered pairs is a solution to -5x + 3y &gt; 12?
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Answer:

(-5,5)

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3 0
3 years ago
Nick wanted to determine the length of one blade of a windmill. He stood at a point on the ground 440 feet from the windmill's b
mafiozo [28]

Answer:There are two right triangles. You need to find the opposite side (the height) of each of them. The difference between the two is the height of the blade, x.

You know the adjacent, 440, and you are looking for the opposite, so you need to use tan for both.

tan (30) = y / 440

y = 440 * tan (30) = 254.034...

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Step-by-step explanation:

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2 years ago
2÷9<br><img src="https://tex.z-dn.net/?f=78%20%5Csqrt%7B%7D%20" id="TexFormula1" title="78 \sqrt{} " alt="78 \sqrt{} " align="ab
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