5a^2 - 5a - 60 ---- 5(a2 + a - 12)
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a + b + c = 180 b = 3a c = 5a Substituting the values of b and c into the first equation. a + 3a + 5a = 180 or 9a = 180 so that a = 20 then b = 3a = 3*20 = 60 and c = 5a = 5*20 = 100
The highest common factor of the numbers 36, 60 and 72 is 12.
The number that is a factor of 160, 100, and 60 is 20. A factor is a number that divides another number without leaving a remainder. In this case, 20 can evenly divide 160, 100, and 60, making it a common factor of all three numbers.
The GCF is 3.
In the absence of signs I have assumed the term in 16x and 60 are negative: ie x2 - 16x = -60 or x2 - 16x + 60 = 0 Factors of 60 which total -16 are -6 and -10, so (x - 6)(x - 10)