Answer:
Step-by-step explanation:
Answer:
x^2 -4x -21
Step-by-step explanation:
Here, we want to write a quadratic polynomial
We have the sum as -4
Let us have x as the variable
so the sum of the variables is -4x
while the product is -21 x^2
Two factors of 21 that can work here is -7x and 3x
So we have
x^2 - 7x + 3x -21
= x^2 -4x -21
Answer:
wheres the reszt of the question?
Step-by-step explanation:
Answer:
x = -7/5
Step-by-step explanation:
3(x-6) -8x= -2+5(2x+1)
Distribute
3x -18 -8x = -2 +10x +5
Combine like terms
-5x -18 = 3 +10x
Add 5x to each side
-5x+5x-18 = 3+10x+5x
-18 = 3+15x
Subtract 3 from each side
-18-3 = -3+3+15x
-21 =15x
Divide each side by 15
-21/15 = 15x/15
-7/5 = x
Answer:
b, d
Step-by-step explanation:
20/-4 = -5
20 x (-1/4) = -5