Solve this quadratic equation using the quadratic formula. 2x 2 - 10x + 7 = 0
2 answers:
Answer:
x₁ = <u>5 + √11</u>
2
x₂ = <u>5 - √11</u>
2
Step-by-step explanation:
quadratic formula is given by
x = <u>-b ±√b² - 4ac</u>
2a
a = 2, b = -10, c = 7
x = <u>-(-10) ± √-10² - 4*2*7</u>
2*2
x = <u>10 ± √100 - 56</u>
4
x = <u>10 ± √44 </u> = <u>2(5 ± √11)</u> = <u>5 ± √11</u>
4 4 2
x₁ = <u>5 + √11</u>
2
x₂ = <u>5 - √11</u>
2
Answer:X=11/10
Step-by-step explanation:
2x2-10x+7=0
<u><em>4</em></u>-10x+<u><em>7</em></u>=0
11-10x=0
-10x= -11
Divide both side by -10
-10x/-10. -11/-10
Answer= 11/10
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The left side was cut out but x will be on top and 5 in the lower square. The last one is the answer.
Answer:
-(x+2)/(x+8)
Step-by-step explanation:
( x^2 -x-6)
------------------
24 - 5x -x^2
Factor out a minus sign from the denominator
( x^2 -x-6)
------------------
-( x^2 +5x -24)
Factor the numerators and the denominators
( x-3) (x+2)
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-( x+8)(x-3)
Cancel like terms
x+2
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-(x+8)
Answer:Yes, I checked.. it is option 2
Step-by-step explanation:
(2x - 3y + 5z) - (-4x - y + 8z)
= 2x - 3y + 5z + 4x + y - 8z
= 6x - 2y - 3z
In short, Your Answer would be Option D
Hope this helps!
Answer:
the answer is -10
Step-by-step explanation:
Its basically multiplication
