Simplify each of the following:
2 answers:
Answer:
a)
- √25 + √50 - √24 + √49 =
- 5 + 5√2 - 2√6 + 7 =
- 12 + 5√2 - 2√6
b)
- √2(2√8 – 3√32 + 4√50) =
- 2√16 - 3√64 + 4√100 =
- 2*4 - 3*8 + 4*10 =
- 8 - 24 + 40 =
- 24
Answer:
a.) 12 + 5√2 - 2√6
b.) 24
Step-by-step explanation:
a) √25 + √50 - √24 + √49
Calculate the square root .
Simplify the radical expression.
Combine like terms.
- 5 + 7 + 5√2 - 2√6
- 12 + 5√2 - 2√6
b.) √2 ( 2√8 - 3√32 + 4√50 )
Simplify the radical expression.
- √2 ( 4√2 - 3 × 2²√2 + 20√2)
Evaluate the power.
- √2 ( 4√2 - 3 × 4√2 + 20√2)
Calculate the products.
Combine like terms.
- √2 × (4 - 12 + 20 )√2
- √2 × 12 √ 2
Multiply.
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Step-by-step explanation:
–9x + 9y = 9
–9x + 9(-7) = 9 (y=-7)
-9x-63=9
Both side +63
-9x=63+9
-9x=72
Both side divide -9
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y=-7
(-8,-7)
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