2*2*2= 8
13*1= 13
2*3*5=30
2*5*5= 50
The roots are 1 +√7 and 1 -√7.
<h3>What is Quadratic equation?</h3>
A quadratic equation in the variable x is an equation of the form ax² + bx + c= 0, where a, b, c are real numbers, a≠0
Given equation:
y= x²+2x-6
First,
Half the coefficient of x and add and subtract the square of (b/2)
y= x²+2x-6+(1)²-(1)²
y= x²+2x+(1)² -6 -(1)²
y= (x+1)² -7
Now, equate y=0
(x+1)² -7 =0
(x+1)² = 7
x+1= ±√7
x=1 ±√7
Hence, the roots are 1 +√7 and 1 -√7.
Learn more about quadratic equation here:
brainly.com/question/1962219
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Answer:
y=-5,-3,-1,1 are value for y
I would choose D and C
Hope this Helps!!!!
Answer:
1.24 %
Step-by-step explanation:
500 * x * 7 = 43.49
x = 43.49/(7*500) = .0124 1.24 %
