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How do you evaluate 5m² - 29 If m = 2?

Answer 1

Hazel Anglin

The answer is #-9#.

#m=2#

Substitute #2# for #m# in the equation.

#5m^2-29#

#5(2)^2-29#

Make it simple.

#5(4)-29#

#20-29#

Just plain.

#-9#

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Answer 2

Hazel Anglin

Substitute the value of ( m ) into the expression:

[ 5(2)^2 - 29 ]

[ = 5(4) - 29 ]

[ = 20 - 29 ]

[ = -9 ]

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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.

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