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Kisachek [45]
3 years ago
7

0,4 Find the roots of the following quadratic equations

Mathematics
1 answer:
Crazy boy [7]3 years ago
7 0

Answer:

b = b2-4ac

= (-7ab)^2 -4 (6a^2)(-3b^2)

= 49a^2b^2 + 72a^2b^2

= 121a^2b^2

Now, x = (7ab +- root 121a^2b^2)÷2(6a²)

= (7ab +- 11ab ) ÷ 12a²

= ( 20ab)/12a² or 4ab/12a²

= 5/3ab or - 1/3ab .

So, these are its roots .

Step-by-step explanation:

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Alejandra correctly wrote the equation y – 3 = y minus 3 equals StartFraction 1 Over 5 EndFraction left-parenthesis x minus 10 r
Delvig [45]

Answer:

  y – 3 = 2(x – 10)

Step-by-step explanation:

In point-slope form, the equation is written ...

  y -k = m(x -h) . . . . . . . for line with slope m through point (h, k)

If only the slope changes, only the value just outside parentheses changes. When the point is (10, 3) and the new slope is 2, the new equation is ...

  y -3 = 2(x -10)

6 0
3 years ago
Read 2 more answers
If f(x) = 2x^2+ 1 and g(x)= x^2-7, find (f-g)(x)
Ganezh [65]

Answer:

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Step-by-step explanation:

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4 0
3 years ago
Solve the following:<br> 2x - 2 = 4x + 6
olchik [2.2K]

Answer:

x = -4

Step-by-step explanation:

<u>Step 1:  Subtract 2x from both sides</u>

2x - 2 - 2x = 4x + 6 - 2x

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<em />

<u>Step 2:  Subtract 6 from both sides</u>

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<em>-8 = 2x</em>

<em />

<u>Step 3:  Divide both sides by 2</u>

-8 / 2 = 2x / 2

<em>-4 = x</em>

<em />

Answer:  x = -4

5 0
3 years ago
Teresa runs each lap in 5 minutes. She will run less than
horrorfan [7]

Answer:

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Step-by-step explanation:

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5 0
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vazorg [7]
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