find the degree of X from these equation (x²+2x-9)
Answers
Answered by
15
Answer:
x
2
−2x−9=0
The standard quadratic equation is ax
2
+bx+c=0
Roots are given, x=
2a
−b±
b
2
−4ac
Here, x=
2×1
2±
4+4×1×9
x=
2
2±2
10
x=1+
10
,1−
10
Answered by
0
Answer:
the answer is 2
Step-by-step explanation:
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