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3 years ago

Evaluate the following expressions, and justify your answers. WhatPower1/3(9)

Mathematics

1 answer:

Galina-37 [17]3 years ago

3 0

Answer:

correct answer is -2

Step-by-step explanation:

given data as per question

WhatPower1/3(9)

to find out

Evaluate the expressions WhatPower1/3(9)

solution

so here we know that whatpower mean exponent of equation so we get by given equation

we know WhatPower1/3(9) = -2

because here

we know that $\frac{1}{3} * \frac{1}{3}$ = $\frac{1}{9}$

but we want only 9

so $\frac{1}{\frac{1}{3}} * \frac{1}{\frac{1}{3}}$ = 9

so exponent is -2

so here we can say that

$(\frac{1}{3})^{-2}$ = 9

so that the exponent is here -2 of $\frac{1}{3}$ that become 9

so correct answer is -2

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<em><u>Solution:</u></em>

Given that we have to solve the given equation by factoring

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$x^2=2x + 3\\\\x^2 - 2x - 3 = 0$

$\text{Consider the form } x^2+bx+c$

Find a pair of integers whose product is c and and whose sum is b

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