12 is the answer
hope this helps!
Answer:
b. {-9, 3}.
Step-by-step explanation:
x^2 + 6x - 27 = 0
We need 2 numbers whose product is -27 and whose sum is + 6.
These are + 9 and - 3. So the factors are:
(x - 3)(x + 9) = 0
(x - 3) = 0 or (x + 9) = 0
x = 3 or -9.
23 is a prime number because the only factors ( numbers that can be multiplied to get 23) are 1 and 23.
Answer:
8/21 = -2/7x
8*7x/21 = -2
56x/21 = -2
56x = -2*21
56x = -42
56x/56 = -42/56
<h2>X = -3/4 , -0.75</h2>
Step-by-step explanation:
