Answer: x=−3 or x=13
Step-by-step explanation:
Step 1: Subtract 39 from both sides.
x2−10x−39=39−39
x2−10x−39=0
Step 2: Factor left side of equation.
(x+3)(x−13)=0
Step 3: Set factors equal to 0.
x+3=0 or x−13=0
x=−3 or x=13
Answer:
Step-by-step explanation:
Any multiple of the given equation is also a dependent linear equation
From the equation
-5x+7y=2
Multiplying all through by any number, say 2
2(-5x)+2(7y)=2(2)
-10x+14y=4 is a dependent linear equation for -5x+7y=2
If you don't fancy using a multiple, you can write the gradient equation y=mx+c
-5x+7y=2
7y=5x+2
Dividing all through by 7 gives the equation as
y=5x/7 + 2/7
Answer:
(y - 3)(y - 5)
Step-by-step explanation:
Consider the product of the factors of the constant term which sum to give the coefficient of the y- term
product = + 15, sum = - 8
The factors are - 3 and - 5
y² - 8y + 15 = (y - 3)(y - 5)
We're not supposed to help with exams. This isn't an exam, is it?
A(0)=202, A(37)=half that.
Last choice.
