0
x^2 + 2x - 10
Does not factor
So apply the Quadratic Eq'n
x = [ -2 +/- sqrt[(2^2) - 4(1)(-10)]}/ 2(1)
x = { -2 +/- sqrt[4 + 40]} / 2
x = { -2 +/- sqrt(44]}/ 2
x = { - 2 +/- 6.6332...} / 2
x = -8.6332... / 2 = -4.3166....
&
x = 4.6332... / 2 = 2.3166...
Hencevthere are two answers.
Still curious? Ask our experts.
Chat with our AI personalities
Lao
Judy
JordanAdd your answer:
Earn +20 pts
Is 2x2 plus 7 equals 79 linear or quadratic?
It is a quadratic equation that has 2 solutions
Is 4y squared plus 9 equals - 4 a linear equation?
No. It's a quadratic equation, and it has two solutions.
How many solutions are in x2 plus x plus 4 equals 0?
There are none. For this equation, there is nonreal answer, as the graph of the quadratic does not pass below the x-axis
What is the formula of a quadratic equation?
The quadratic equation in standard form is: ax2 + bx + c = 0. The solution is x = [-b ± √b2- 4ac)] ÷ 2a You can use either plus or minus - a quadratic equation may have two solutions.
What is the discriminant to determine how many real number solutions the quadratic equation -4j2 plus 3j-28 equals 0 has?
The discriminant is -439 and so there are no real solutions.
