Question

Solve x^2+7x-10=0
Then find the x-intercepts of f(x)=x^2+7x-10

Answer 1

well, you have to factor this inorder to find the zeros. Although if you have a graphing calculator you can just graph it and use the calc to find the zeros.

Answer 2

Now, can you think of two numbers that multiply to be -10 and add to be 7?

Answer 3

yeah i wish i had a cal. my battery died

Answer 4

?

Answer 5

can not think of one.

Answer 6

are u sure its not +10 at the end , becuase if it is then it factors easily. If not then you have to use the quadratic fromula

Answer 7

no it is - 10

Answer 8

the use the quadratic formula