SOLUTION: y2 - 16 = 0

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Question 119248This question is from textbook Intermediate Algebra
: y2 - 16 = 0 This question is from textbook Intermediate Algebra

Found 2 solutions by jim_thompson5910, edjones:
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!

y%5E2-16=0 Start with the given equation

%28y%2B4%29%28y-4%29=0 Factor the left side (note: if you need help with factoring, check out this solver)



Now set each factor equal to zero:
y%2B4=0 or y-4=0

y=-4 or y=4 Now solve for y in each case


So our answer is
y=-4 or y=4

Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
y^2 - 16 = 0
(y+4)(y-4)=0
y=-4, y=4
.
Ed