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3 years ago

One of the solutions to x^2 - 2x - 15 = 0 is x = -3. What is the other solution

Mathematics

2 answers:

Alex787 [66]3 years ago

8 0

Answer:

x=5

Step-by-step explanation:

You have to factor the equation and the way you do this is to find two numbers that multiply to get -15 and add to get -2 and those numbers are 3 and -5 so the factors are (x+3) and (x-5)

You set them equal to 0 and solve for x

x+3=0 x=-3

x-5=0 x=5

austin2 years ago

0 0

2(x−3) = 2x + 15
how many soultions

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