Answer: x = - 3.5
Step-by-step explanation:
Rewrite the equation by completing the square.
4x2 + 28x + 49 = 0
Completing the square method :
Divide through by the Coefficient of x^2
x^2 + 7x + (49/4) = 0
a = 1, b = 7, c = 49/4
Move c to the right side of the equation
x^2 + 7x = - 49/4
Complete the square on the left hand side by squaring its half of the x term
(7/2)^2 = (49/4)
Add the output to both sides of the equation
x^2 + 7x + (49/4) = - (49/4) + (49/4)
(x + 7/2)^2 = 0
Square root of both sides
x + 7/2 = 0
x = - 7/2
x = - 3.5
Answer:
A
Step-by-step explanation:
How to find the coordinates is by going to the right and going up of where the point is
Hope this helps :)
Answer:
2.70×m=x
Step-by-step explanation:
2.70 times the mile
Is it x times 2 times y times 2? is that what it is asking or is it meaning squared
The answer is The equation 3.5|6x – 2| = 3.5 has one solution
