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zvonat [6]
3 years ago
7

6x squared plus 12x plus 13 equals 2x squared plus 4

Mathematics
1 answer:
Andrews [41]3 years ago
6 0
12x^2+12x+3=2x^2+4\\\\12x^2-2x^2+12x+3-4=0\\\\10x^2+12x-1=0\\\\a=10;\ b=12;\ c=-1\\\\\Delta=12^2-4\cdot10\cdot(-1)=144+40=184\\\\x_1=\frac{-b-\sqrt\Delta}{2a};\ x_2=\frac{-b+\sqrt\Delta}{2a}\\\\\sqrt\Delta=\sqrt{184}=\sqrt{4\cdot46}=2\sqrt{46}\\\\x_1=\frac{-12-2\sqrt{46}}{2\cdot10}=\frac{-6-\sqrt{46}}{10};\ x_2=\frac{-12+2\sqrt{46}}{2\cdot10}=\frac{-6+\sqrt{46}}{10}
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Vlad [161]

Answer:

the answer is 22 hope this helps

Step-by-step explanation:

7(-7)= -49

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3 0
2 years ago
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Step-by-step explanation:

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7 0
3 years ago
HELP PLZ!
Elza [17]

Answer:

-5 = y

Step-by-step explanation:

{y = 6x − 11

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x² - 2x + 1

{[x - 1]}^{2} = 0

1 = x [Plug this back into both equations above to get the y-coordinate of −5]; −5 = y

I am joyous to assist you anytime.

3 0
3 years ago
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Alekssandra [29.7K]
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f(x) = 5x-7 does the job.
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