(t + 3)(t - 15)Ask yourself, what factors of - 45 add up to - 12 ?t = - 3t = 15
Find out what two numbers add up to -8 yet when mutiplied they produce 12 and so: x squared-8x+12 = (x-2)(x-6) when factored
add 3 to both sides x2 -3(+3) =162 (+3) x2 = 165 x ~ +- 12.84
Factors of -8 are -1 & 8, -2 & 4, -4 & 2 and -8 & 1. Only -4 & 2 add to -2 so factors are (x + 2)(x - 4)
They add up to: 8x2
It is not clear what you mean by x^2 minus "factor x". Please add more information and resubmit.
(t + 3)(t - 15)Ask yourself, what factors of - 45 add up to - 12 ?t = - 3t = 15
twelve and minus five 12 x -5 = -60 12 - 5 = 7
This sequence is the result of 3 functions one after the other. These functions are: squared, add 2, minus 1. So 1 squared = 1, +2 = 3, -1 = 2, squared = 4, +2 = 6, -1 = 5, squared = 25.... So the next step would be +2 to get 27, then minus 1 to get 26.
2 mc squared
Yes.
Find out what two numbers add up to -8 yet when mutiplied they produce 12 and so: x squared-8x+12 = (x-2)(x-6) when factored
add 3 to both sides x2 -3(+3) =162 (+3) x2 = 165 x ~ +- 12.84
Factors of -8 are -1 & 8, -2 & 4, -4 & 2 and -8 & 1. Only -4 & 2 add to -2 so factors are (x + 2)(x - 4)
They add up to: 8x2
The only factors of 6 which add to 7 are 1 & 6 so: (x - 1)(x - 6)
X2 - 4X - 5 = 0 easy factor, what two factors of - 5 add up to - 4 (X + 1)(X - 5) X = - 1 ------------- X = 5 --------------