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26 votes
26 votes
Which equation results from taking the square root of both sides of (x + 9)2 = 25?

Ox+3=+5
Ox+3=+25
Ox+9=+5
Ox+9=+25

User Okie
by
2.5k points

1 Answer

16 votes
16 votes

So, the correct equation is equivalent to the x + 9 = ±5. The third option is correct.

What is the quadratic equation?

It is a polynomial that is equal to zero. Polynomial of variable power 2, 1, and 0 terms are there. Any equation having one term in which the power of the variable is a maximum of 2 then it is called a quadratic equation. The general form of the quadratic equation is ax² + bx + c.

Given

(x + 9)² = 25 is a quadratic equation.

How to find the equation results from taking the square root of both sides?

(x + 9)² = 25 is a quadratic equation.

Taking square root on both sides.

(x + 9) = √25

(x + 9) = ±5

So, the equation is equivalent to the x + 9 = ±5.

Thus, the third option is correct.

User Sajmir
by
3.3k points