Given A= 3x2 – 2x+5 and B is 3 less than twice A. Find the sum of A and B.

Waferthin asked Jun 9, 2023

12,639 views

9 votes

Given A= 3x2 – 2x+5 and B is 3 less than twice A.
Find the sum of A and B.

Waferthin asked Jun 9, 2023

2.5k points

Your comment on this question:

Email me at this address if a comment is added after mine:Email me if a comment is added after mine

Privacy: Your email address will only be used for sending these notifications.

Email me at this address if my answer is selected or commented on:Email me if my answer is selected or commented on

Privacy: Your email address will only be used for sending these notifications.

21 votes

Answer:

A+B=9x^2-6x+12

Explanation:

$A=3x^2-2x+5\\B=2A-3\\\\B=2(3x^2-2x+5)-3\\B=6x^2-4x+10-3\\B=6x^2-4x+7\\\\A+B=(3x^2-2x+5)+(6x^2-4x+7)=9x^2-6x+12$

Gimhani answered Jun 13, 2023

2.9k points

Email me at this address if a comment is added after mine:Email me if a comment is added after mine

Privacy: Your email address will only be used for sending these notifications.

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

1.6m questions

2.0m answers