Factor completely and check mentally 10a^2+20a
It cannot be simplified any further, so it is: 5a³ + 15a² + 20a
20a plus 14 will be 34a minus 8a minus 7 34a minus 8 is 26a minus 7 is 19a. The single b is 1b plus 6b which is 7b minus 2b equals 5b.
12
They are 4 terms of an algebraic expression.
20a^2
Factor completely and check mentally 10a^2+20a
It cannot be simplified any further, so it is: 5a³ + 15a² + 20a
4
5(4a + 7)
20a plus 14 will be 34a minus 8a minus 7 34a minus 8 is 26a minus 7 is 19a. The single b is 1b plus 6b which is 7b minus 2b equals 5b.
It is 20a - 5b - 9.
As written, that equals 32a - 8, which factors to 8(4a - 1) If you meant 20a^2 + 12a - 8, that factors to 4(5a - 2)(a + 1)
2
20a + 45 = 5(4a + 9)
-4(5a-3) = -20a + 12
The greatest common factor of 16 20 and 36 is 4.