Answer:
x=2±16i
Step-by-step explanation:
1.) Using the PEMDAS distribute the using the FOIL method
2.) Distribute the -16 to ()
3.) Add the -25 to the equation
=0
4.) Since this isn't factor-able, you must use the quadratic formula,
and distrubute the numbers
a=-16 b=64 and c=-89
5.) Simplify the radical by finding the factors of -18688 that has a perfect root as one of the factors (which is -256 and 73).
6.)Simplify the fraction
7.) Your two roots are:
{2}(+ or -)16i\sqrt{73}
Answer: b+2=8
Step-by-step explanation:
The answer is b ok have fun
?? You can use point slope form. Which is y-y1=m(x-x1). Where:
y1 is your y coordinate
m is your slope
x1 is your x coordinate
It doesnt matter which set of points you use
X-intercepts are zeroes of the parabola.
(x-x1)(x-x2)=(x+1.6)(x+3.2)=x² +1.6x+3.2x+5.12=x²+4.8x+5.12
y=x²+4.8x+5.12, but the y-int. is (0, 25.6),
So, our parabola should look like
y=5(x²+4.8x+5.12)
y=5x²+24x+25.6