8. the square of a binomial is the sum of the square of the first terms twice the product of the two terms
and the square of the last term What is the constant term of (3x + 2y)² when expanded?
C. 4
D. 5
A. 2
B. 3
and the square of the last term What is the constant term of (3x + 2y)² when expanded?
C. 4
D. 5
A. 2
B. 3
Add an Answer
More Questions From This User See All
Answers & Comments
Answer:
8. the constant term of (3x + 2y)² when expanded is 4y² or may be 4
C.4
Solution:
(3x + 2y)²
(3x + 2y)(3x + 2y)
(square the first term)
• (3x)(3x) = 9x²
(Double the product of the first and last term)
• (3x)(2y) + (2y)(3x)
= 6xy + 6xy
= 12xy
(square the last term)
• (2y)(2y) = 4y²