Question

For factorizing the algebraic expression 3x²+10x+7, the teacher should help the learner to find two numbers with

• A. sum 10 and product 7
• B. sum 121 and product 10
• C. sum 10 and product 21
• D. sum 7 and product 10

Answer 1

Answer:

C. sum 10 and product 21

ax²+bx+c we can find 2 numbers such that sum=b and product = ac sum=10 and product = 21