<span>8 + 3.4 = 3.4 +8
commutative property of addition
</span>
Answer:
2c⁴ + 3c³ - 13c² - 18c + 6
Step-by-step explanation:
Step 1: Distribute the c²
2c⁴ + 3c³ - c²
Step 2: Distribute the -6
-12c² - 18c + 6
Step 3: Combine the 2 distributions
2c⁴ + 3c³ - c² - 12c² - 18c + 6
Step 4: Combine like terms
2c⁴ + 3c³ - 13c² - 18c + 6
It’s B because the y intercept is +3
Answer:
$ 83.2
Step-by-step explanation:
3 pounds = 16.64
15 pounds = ?
15 pounds = 5 × 16.64
= $ 83.2
Answer:
-3(3 x + 2) (2 x - 7)
Step-by-step explanation:
Factor the following:
-18 x^2 + 51 x + 42
Factor -3 out of -18 x^2 + 51 x + 42:
-3 (6 x^2 - 17 x - 14)
Factor the quadratic 6 x^2 - 17 x - 14. The coefficient of x^2 is 6 and the constant term is -14. The product of 6 and -14 is -84. The factors of -84 which sum to -17 are 4 and -21. So 6 x^2 - 17 x - 14 = 6 x^2 - 21 x + 4 x - 14 = 2 x (3 x + 2) - 7 (3 x + 2):
-32 x (3 x + 2) - 7 (3 x + 2)
Factor 3 x + 2 from 2 x (3 x + 2) - 7 (3 x + 2):
Answer: -3(3 x + 2) (2 x - 7)