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2 years ago

( 2 + 7 -14Turn over

Mathematics

1 answer:

Viefleur [7K]2 years ago

4 0

Answer:

Step-by-step explanation:

2 + 7 - 14 flipped around =

14 - 7 + 2 =

7 + 2 =

Hope that helps! :)

-Aphrodite

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Which equation is equivalent to √x^2+81 = x+10

jeka57 [31]

Keywords:

equation, operations, equivalent, binomial, square root

For this case we have an equation in which we must apply operations to rewrite it in an equivalent way. We must start by raising both sides of the equation to the square. Thus, we eliminate the square root of the left side of equality and finally solve the binomial of the right side of equality.

So we have:

$\sqrt {x ^ 2 + 81} = x + 10\\(\sqrt {x ^ 2 + 81}) ^ 2 = (x + 10) ^ 2\\x ^ 2 + 81 = (x + 10) ^ 2$

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Answer:

$x ^ 2 + 81 = x ^ 2 + 20x +100$

Option D

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( 2 + 7 -14Turn over​

( 2 + 7 -14Turn over