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NemiM [27]
4 years ago
15

Which are the solutions to the quadratic equation 4x^2=64?

Mathematics
1 answer:
svlad2 [7]4 years ago
7 0
X=4 and x=-4 Your answer would be C.
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83x + P = 83x + Q        <em>subtract 83x from both sides</em>

P = Q

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If 5 + 2 root 3 / 7 + 4 root 3 = a - b root 3, find a and b.​
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Answer:

lhs = (5+2√3)/(7+4√3)

= [(5+2√3)(7-4√3)]/[(7-4√3)(7+4√3)]

=[35-20√3+14√3-24]/[7²-(4√3)²]

=[11-6√3]/[49-48]

=11-6√3

therefore

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Step-by-step explanation:

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4 0
3 years ago
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Factor by grouping. 40p2 – 13p – 36
Serga [27]
Factor by regrouping:
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=  40p^2 - 13p -36

= (8p - 9)(5p + 4)

Regroup to:  (8p - 9)(5p + 4)




Hope that helps!!!
7 0
3 years ago
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3 0
4 years ago
Write the equation: Five times the difference of a number and six is twenty.​
xz_007 [3.2K]

Answer:

C. 5(x-6)=20

Step-by-step explanation:

we can represent the value of x decreased by 6 times 5 as 5(x-6) and then show that that is equal to 20.

4 0
3 years ago
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