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Tema [17]
3 years ago
13

I don't know how to do this?

Mathematics
2 answers:
Alborosie3 years ago
8 0
All you gotta do is set each of the parentheses equal to zero and solve for x
Ex x+7=0 => x= -7
x+4=0 => x= -4
miskamm [114]3 years ago
7 0
Do you know foil? FOIL= First,Outside,Inside, and Last

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Write <img src="https://tex.z-dn.net/?f=%28-%20x%5E%7B2%7D%29%20-4x%2B2" id="TexFormula1" title="(- x^{2}) -4x+2" alt="(- x^{2})
marin [14]
Because the coefficient of x^2 is -1, we know that a will be -1.  Knowing that the coefficient of x is -4, we can calculate that p=2.  Thus, we have -1(x+2)^2+q is our equation.  This is equal to -x^2-4x-4+q.  As the constant term must be 2, we can then see that q is 6.

As such, we have -1(x+2)^2+6=0 as our factorization.

To solve this equation, we can use the quadratic formula.  Plugging in values, we have:

\frac{4+-2 \sqrt{6} }{-2}
which is equal to: (when the fraction is simplified)
-2+- \sqrt{6}
7 0
3 years ago
I have finals tomorrow lol. If you guys could teach me how to do this you’d be amazing
ddd [48]
2r + 2r + 5 + r + 4r - 3 = 38

9r + 5 - 3 = 38

9r + 2 = 38

9r = 38 - 2

9r = 36

9r/9 = 36/9

r = 4cm

Done!
3 0
3 years ago
Find 5 consecutive integers whose sum is 244
storchak [24]

So the first integer is 61.

Then the others must be 62, 63, and 64. To check, you can add them all together. 61+62+63+64=250.

4 0
3 years ago
Complete the formula to find the area of the triangle plz help I have only 15 mins left​
scoray [572]
1/2*3*4=6



Explanation:

The height is 3 cm and the base is 4cm.

I believe 5 is there to trick you. The bottom Is always the base and the straight line going vertically is always the height.


1/2*3*4=6
6 0
3 years ago
Read 2 more answers
Which expression is equivalent to -4 - 9?<br> A. 4 + 9<br> B. 4 - 9<br> C. -4 + (-9)<br> D. -4 + 9
musickatia [10]
Answer: C. -4 + (-9)
8 0
3 years ago
Read 2 more answers
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