4y - 3
If a multiple of 10 were a factor of 45, then both '10' and the multiple would be factors of 45. Since 10 is not a factor of 45, there is no such number.There are no multiples of 10 that are factors of 45.
360 !
45 +45 ------ 90
There is no multiple of 10 that's a factor of 45.
The highest common factor of 15 and 45 is 15
x2 + 18x + 45 = (x + 15)(x + 3).
(x+3)(x+15)
5(4x + 9)
(z + 15)(z + 3)
4y - 3
x2 - 14x + 45 = (x - 5)(x - 9).
5(x^2 + 9)
x2 + 14x + 45 = (x + 9) (x + 5)
(x + 15)(x - 3)
(x^2 + 9)(x^2 + 5)
45n + 90 factors to 45(n + 2)