ANSWER WITH EXPLANATION
The quadratic equation whose roots are ±√7 is
a.x^2+7=0
b.x^2-7=0
c.x^2+x+7=0
d.x^2-x-7=0
No SPAM
Share
ANSWER WITH EXPLANATION
The quadratic equation whose roots are ±√7 is
a.x^2+7=0
b.x^2-7=0
c.x^2+x+7=0
d.x^2-x-7=0
No SPAM
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:
Correct option is
D
1,
4
13
Given Quadratic equation is
2x
2
−9x+7=0
Comparing it with the general form of quadratic equation ax
2
+bx+c=0
we write, a=2,b=−9,c=7
Quadratic formula is x=
2a
−b±
b
2
−4ac
⟹x=
2(2)
−(−9)±
(−9)
2
−4(2)(7)
⟹x=
4
9±
81−56
⟹x=
4
9±
25
⟹x=
4
9±5
⟹x=
4
9+5
x=
4
9−5
⟹x=1,
2
7
Step-by-step explanation:
please make a brainliest answer