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How do you solve #a^2=15a#?

Answer 1

Abigail Allen

#a = 0 or 15#

#a^2=15a# #a^2-15a=0# #a(a-15)=0# By null factor theorem. #a = 0# or #a-15=0# Therefore #a = 0 or 15#

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Answer 2

Hazel Anglin

#a=15#

#a^2 = 15a#

#a xx a = 15 xx a#

#a(a) = (15)a#

#cancela(a) = (15)cancela#

#a=15 -> Answer#

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Answer 3

Genesis Allen

To solve the equation a^2 = 15a, you first move all terms to one side to set the equation to zero, resulting in a^2 - 15a = 0. Then, factor out 'a' to get a(a - 15) = 0. Apply the zero-product property, setting each factor equal to zero: a = 0 and a - 15 = 0. Thus, the solutions are a = 0 and a = 15.

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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.