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How do you solve #4a^2-144=0#?

Answer 1

Genesis Allen

#a=-6,6#

Add #144# to both sides of the equation.

#4a^2=144#

Divide both sides of the equation by #4#.

#a^2=36#

Take the square root of both sides. Recall that both the positive and negative roots should be taken.

#a=pmsqrt36=pm6#

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Answer 2

Eli Assouline

To solve the equation (4a^2 - 144 = 0), follow these steps:

Add 144 to both sides of the equation: (4a^2 = 144).
Divide both sides by 4: (a^2 = 36).
Take the square root of both sides: (a = \pm 6).

Therefore, the solutions to the equation are (a = 6) and (a = -6).

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.