Do you still need the answer, because im working on the same question..
Answer:
y = 7
Step-by-step explanation:
3 × (3y - 4) = 51 multiply 3 with inside the parenthesis
9y - 12 = 51 add like terms
9y = 51 + 12
9y = 63
y = 7
Answer:
(2b-3)²
Step-by-step explanation:
The square of a binomial is ...
(p - q)² = p² - 2pq + q²
The fact that the first and last terms are perfect squares suggests that you might want to look to see if the middle term matches this form. It does.
For p² = 4b², p=2b.
For q² = 9, q = 3.
Then 2pq = 2(2b)(3) = 12b.
So, the factoring is ...
4b² -12b +9 = (2b -3)²
Answer:(2x + 5)⁵
Step-by-step explanation:I assume you mean the 4th term of the expansion of (2x + 5)⁵. The coefficient can be found from pascal's triangle.