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Yuri [45]
3 years ago
6

A^2−8ab+16b^2=81, find a–4b

Mathematics
1 answer:
neonofarm [45]3 years ago
4 0

Answer:

-9, 9

Step-by-step explanation:

a² − 8ab + 16b² = 81

(a - 4b)² = 81      Wrote the left-hand side as a square

 a - 4b = ±9     Took the square root of each side

All values of a - 4b are -9 and +9.

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4 - 3x = 8 - 4x Plz answer this question
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Answer:x=4

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

4−3x=8−4x

4+−3x=8+−4x

−3x+4=−4x+8

Step 2: Add 4x to both sides.

−3x+4+4x=−4x+8+4x

x+4=8

Step 3: Subtract 4 from both sides.

x+4−4=8−4

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3 years ago
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3 years ago
Translate this sentence into an equation.
motikmotik

Answer:

g = 61.

Step-by-step explanation:

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3 years ago
Solve system by elimination <br> -5x-10y=-20<br> 10x+10y=0
bekas [8.4K]

Answer:

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Step-by-step explanation:

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