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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∙ 14y ago
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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
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
5x equals 3x plus 1000 plus 0?
5x = 3x+1000+0 5x-3x = 1000 2x = 1000 x = 500
5x plus 15 equals 0?
x=(-3)
What is the discriminant of 2x2 plus 5x plus 4 equals 0?
-7
What is the x-intercept for y equals 5x-10?
15
What is the slope of the line -5x plus 25y equals 0?
- 5X + 25Y = 0 25Y = 5X Y = (1/5)X ============
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
Solve the following system of equations 5x plus y equals -9 -5x plus 2y equals 0?
x = -1.2, y = -3
What is the discriminant of 2x2 plus 5x plus 28 equals 0?
The discriminant is -199.
If 3x plus 5x equals -8 then x plus 1 equals?
0 because X= -1
How do you solve 8 parentheses 1 plus 5x parentheses plus 5 equals 13 plus 5x?
8(1+5x) +5 = 13+5x => 8+40x + 5 = 13 +5x => 13+40x = 13+5x => 13-13+40x = 13-13+5x => 40x = 5x => 40x - 5x = 0 => 35x = 0 => 35x/35 = 0/35 => x = 0
