Giovanni Gaines Arithmetic on Polynomial Expressions Nov 21, 3:14:22 PM If C=x^2+7x+5 and D=x^2-8, find an expression that equals 3C-2D in standard form.

Question

asked Dec 12, 2023 221k views

1 Answer

asked Jul 28, 2021 147k views

CFMLBread asked Jul 28, 2021

8.9k points

1 answer

1 vote

147k views

asked May 20, 2024 152k views

Martin Randall asked May 20, 2024

8.2k points

1 answer

3 votes

152k views

asked May 5, 2024 167k views

Juraj asked May 5, 2024

by Juraj

8.1k points

1 answer

5 votes

167k views

Ethan McCue · Answer 1 · 2023-12-16T00:16:13+0000

Answer:

3C - 2D = x² + 21x + 31

Explanation:

3C - 2D

= 3(x² + 7x + 5) - 2(x² - 8) ← distribute both parenthesis

= 3x² + 21x + 15 - 2x² + 16 ← collect like terms

= x² + 21x + 31 ← in standard form