Answer:
77°
Step-by-step explanation:
there's a rule, look it up
You can find the solution for x by subtracting 5 from 12 which is -17. 5 added to 17 would be -12 so x = -17.
G = 2.5
Use inverse operations. 9 / 3.6 = 2.5.
Answer:
x² + 3x - 28
Step-by-step explanation:
Each term in the second factor is multiplied by each term in the first factor
(x + 7)(x - 4)
= x(x - 4) + 7(x - 4) ← distribute both parenthesis
= x² - 4x + 7x - 28 ← collect like terms
= x² + 3x - 28
