Answer:
28
Step-by-step explanation:
There were 7 chairs in each row, now they add three more to each row so now there's 10 chairs per row. There were 56 chairs altogether previously but now they need 5 times more so 56 times 5 equals 280. so with ten chairs per row and 280 chairs in total: 280/10 = 28. You'll need 28 rows
9514 1404 393
Answer:
correct choice is marked
Step-by-step explanation:
The error is in step 2. The square root cannot be distributed to a sum.
Answer:
(2x−1)(2x−3)
Step-by-step explanation:
4x² - 6x - 2x + 3
= 4x² - 8x + 3 (by factorization method, or choose any of your favorite methods)
= (2x−1)(2x−3)
