Here is a quadratic equation x^2 + 5x = 14
x^2 + 5x - 14 = 0 - Subtract 14 from both sides
(x + 7)(x - 2) = 0 - Factor
x + 7 = 0 x - 2 = 0 - Set each factor equal to 0
x = -7 x = 2 - solve each piece
If the constant is easy to find factors of then use the factoring method
If the constant is difficult and you have a graphing calculator, then graph
If no graphing calculator then use the quadratic formula
FV=PV(1+r)ⁿ
FV=Future Value, or the $2,600 that you want.
PV=Present Value, or the value that you are depositing.
APR: .06
2,600=2,000(1.06)ⁿ
2,600=2120ⁿ
It would take about a year for Nicole to get $2600.
~Hope I helped~
1. 7 : 07
2. 9 : 45
3. 6
4. 2 : 25
5. 8
6. 17
At Cell 4U it would cost $250 with accessories
At Data House it would cost $245 with accessories.
He should buy a phone from Data house because it will be 5 dollars cheaper
15x - 5y = 1 it's B in standard form
