2(y - 3)(y - 10)
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3x2 + 27x +60
x2 + 4x - 60 factors into (x + 10)(x - 6). You can use the FOIL method to check your answers when you factor.
60+60+60+60+60+60+60+60 =480 All the addition can happen in the same step. This is the same as 60*8.
300 !
use the quadratic formula since there isn't a factor of 60 that when added together equals 19 The above answer is wrong because 4 and 15 are such numbers. x2 + 19x + 60 = x2 + 4x + 15x + 60 = x(x + 4) + 15(x + 4) = (x + 4)(x + 15)