Explore a wide range of topics and get answers from experts on IDNLearn.com. Join our Q&A platform to access reliable and detailed answers from experts in various fields.

Solve the following quadratic equation by factoring or Quadratic Formula.
x2 ā€“ 3x ā€“ 10.= 0
O{-2, 5}
O{-2, 10}
O{-5, 2}
O{-5, 4}


Sagot :

Answer:

A.

Step-by-step explanation:

x2 - 3x - 10. = 0

x2 + 2x - 5x - 10 = 0

(x2 + 2x) (-5x - 10) = 0

x (x + 2) - 5 (x + 2) = 0

(x - 5) (x + 2) = 0

x - 5 = 0 x + 2 = 0

x = 5 or x = - 2.

Answer is A Iā€™m pretty sure