0
x² + 5x + 10 = 0
What two numbers multiply to get 10 and add to get 5? (1,10)? (2,5)? No.
There are none, so go to the quadratic formula to get the answers.
(-b±√(b²-4ac))/2a
(-5±√(25-40))/2 {{Uh-oh. Negative determinant, so no real answers at all.}}
(-5±√-15)/2
Answers are (-2.5 + 1.9365i) and (-2.5 - 1.9365i) ■
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Continue Learning about Math & Arithmetic
How do you factor 5x2 plus 5x - 5 equals 0?
you would first do 10+5x-5=0, then 5x+5=0 and is factored by 5(x+1)=0. or if you want to know what x equals with, x=-1
What is the discriminant of 2x2 plus 5x plus 4 equals 0?
-7
What is the x-intercept for y equals 5x-10?
15
5x plus y equals 5 and 3x plus 2y equals 3?
(1, 0)
What is y equals 5x plus 1 in standard form?
5x - y + 1 = 0
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