SOLUTION: Complete parts a-c for each quadratic equation
a) find the value of the discriminant
b) describe the number and type of roots
c) find the exact solutions by using the Quadratic
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-> SOLUTION: Complete parts a-c for each quadratic equation
a) find the value of the discriminant
b) describe the number and type of roots
c) find the exact solutions by using the Quadratic
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Question 182117This question is from textbook Algebra2
: Complete parts a-c for each quadratic equation
a) find the value of the discriminant
b) describe the number and type of roots
c) find the exact solutions by using the Quadratic Formula
18) -12x^2+5x+2=0 This question is from textbook Algebra2
You can put this solution on YOUR website! 18) -12x^2 + 5x + 2 = 0
:
a) find the value of the discriminant
discrim = b^2 - 4*a*c
In this equation: a=-12; b=5; c=2, so we have
d = 5^2 + 4 * -12 * 2
d = 25 - (-96)
d = 25 + 96
d = +121
:
b) describe the number and type of roots
d > 0 therefore, two different real roots
:
c) find the exact solutions by using the Quadratic Formula
we already found the value of the discriminant, so we can write it
Two solutions:
and
