503 x 3 = 1509
But, it you want to estimate it I would say 1500.
There is a three-digit number.The second digit is four times as big as the third digit,while the first digit is three less than the second digit. What is the number?
=Answer: 141
Answer:
-2x^3+x^2+5x-5
Step-by-step explanation:
f(x) = 4 - 2x – 2x^3
g(x) = x² + 7x-9
f(x) + g(x)=4 - 2x – 2x^3+ x² + 7x-9
Combine like terms
f(x) + g(x) = -2x^3+x^2+5x-5