Answer:
57
Step-by-step explanation:
18.5= 19
Answer:
2b^3
Step-by-step explanation:
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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3+2 is 5.
1/7 +1/7 is 2/7.
Thus, the answer is 5 2/7.
Y+6=5(x-4) so do distributive. y+6=5x-20 and then pass 6 to subtract y=5x-20-6 and y=5x-26
