Factor the following:
12 x^4 - 42 x^3 - 90 x^2
Factor 6 x^2 out of 12 x^4 - 42 x^3 - 90 x^2:
6 x^2 (2 x^2 - 7 x - 15)
Factor the quadratic 2 x^2 - 7 x - 15. The coefficient of x^2 is 2 and the constant term is -15. The product of 2 and -15 is -30. The factors of -30 which sum to -7 are 3 and -10. So 2 x^2 - 7 x - 15 = 2 x^2 - 10 x + 3 x - 15 = x (2 x + 3) - 5 (2 x + 3):
6 x^2 x (2 x + 3) - 5 (2 x + 3)
Factor 2 x + 3 from x (2 x + 3) - 5 (2 x + 3):
Answer: 6 x^2 (2 x + 3) (x - 5)
Answer: Chet is 6 years old now
Step-by-step explanation:
Chet is 6 years old now and his father is 5 x 6 years = 30 years old now.
In 6 years, Chet will be 12 years old, so his father will be 3 x 12 years old = 36 years old.
Answer:
30
Step-by-step explanation:
-75 + 105= 30
(Hope this helps can I pls have brainlist (crown) ☺️)
Step-by-step explanation:
the price of a piece of cloth and the length of the cloth
