Find the solution of the following quadratic equation by completing the square
1) ײ + 5×=14
Share
Find the solution of the following quadratic equation by completing the square
1) ײ + 5×=14
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Answer:
Answer:
x = 7, x = -2
Step-by-step explanation:
x^{\:2}-\:5x\:-\:14=0x
2
−5x−14=0
x_{1,\:2}=\frac{-b\pm \sqrt{b^2-4ac}}{2a}x
1,2
=
2a
−b±
b
2
−4ac
X1 =\frac{5+\sqrt{\left(-5\right)^2+4\cdot \:1\cdot \:14}}{2\cdot \:1}=
2⋅1
5+
(−5)
2
+4⋅1⋅14
X2 \frac{5-\sqrt{\left(-5\right)^2+4\cdot \:1\cdot \:14}}{2\cdot \:1}
2⋅1
5−
(−5)
2
+4⋅1⋅14
X = 7
X = -2