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kupik [55]
3 years ago
13

7. Write the following expression in simplest form: -10 + 7a- 8a - 11 + 2a? + 6a

Mathematics
2 answers:
UkoKoshka [18]3 years ago
7 0

Answer:

2a+6a+7+8+10+11

Step-by-step explanation:

erica [24]3 years ago
6 0
Ummm what are the options
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128

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3 years ago
What are the solutions to the following system? StartLayout Enlarged left-brace 1st row negative 2 x squared + y = negative 5 2n
Yakvenalex [24]

Answer:

(\sqrt{2},-1),(-\sqrt{2},-1)

(StartRoot 2 EndRoot, negative 1) and (negative StartRoot 2 EndRoot, negative 1)

Step-by-step explanation:

we have

-2x^{2} +y=-5 ----> equation A

y=-3x^{2} +5 -----> equation B

solve by substitution

substitute equation B in equation A

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solve for x

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y=-3x^{2} +5

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For x=-\sqrt{2} ----> y=-3(-\sqrt{2})^{2} +5=-1

therefore

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(StartRoot 2 EndRoot, negative 1) and (negative StartRoot 2 EndRoot, negative 1)

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