The square roots of 64 are -8 and +8.
Answer:
x = 7 x = -6
Step-by-step explanation:
x^2−x−42=0
Factor
What two numbers multiply to -42 and add to -1
-7*6 = -42
-7+6 = -1
(x-7) (x+6) =0
Using the zero product property
x-7 =0 x+6 =0
x = 7 x = -6
Answer:
Hello :
the slope of the line when equation y = x +3 is : 1
the equation in slope-intercept is : y - (-1) = 1 (x -0)
y + 1 = x
