Seven less than twice a number is 21
1 answer:
You might be interested in
First we need to find ∡PRQ. To do this we can use the fact that the sum of the interior angles of a triangle is 180°:
Now, we can use the fact that a strait line (like SRQ) is also 180°:
°
Now, we can use the fact that a strait line (like SRQ) is also 180°:
9514 1404 393
Answer:
x = {7, 1, -4}
Step-by-step explanation:
Dividing the given factor from the polynomial using synthetic division, we get ...
f(x) = (x -7)(x^2 +3x -4)
Factoring the quadratic* gives ...
f(x) = (x -7)(x -1)(x +4)
The zeros are the values of x that make these factors be zero:
x = {7, 1, -4}
_____
* The constants in the binomial factors are factors of -4 that have a sum of +3. Those are (-1)(4) = -4. -1+4 = 3.
