X squared + 5x -6
X squared - 2x15
X squared -7x +12
Answer:
Step-by-step explanation:
In each case, you're looking for divisors of the constant that have a sum equal to the x-coefficient. Those divisors are the constants in the binomial factors.
1) -6 = -1·6 = -2·3 . . . . . (-1)+(6) = 5, so these are the constants of interest.
x^2 +5x -6 = (x -1)(x +6)
__
2) -15 = -1·15 = -3·5 = -5·3 . . . . . (-5)+(3) = -2, so these are the constants of interest
x^2 -2x -15 = (x -5)(x +3)
__
3) 12 = -1·-12 = -2·-6 = -3·-4 . . . . . (-3) +(-4) = -7, so these are the constants of interest
x^2 -7x +12 = (x -3)(x -4)
Answer:
315
Step-by-step explanation:
42 is 84 percent of 50. If you apply this to 375, you get 315 because 84 percent of 375 is 315
Answer:1 3/4
Step-by-step explanation:
6 3/4*3 1/2 divided 3 3/5 divided 3 3/4
convert to proper fraction
27/4*7/2 divided 18/5 divided 15/4
27/4*7/2*5/18*4/15= 63/36= 7/3