Answer:
The roots are real and unequal (3, -3)
Step-by-step explanation:
x²-9=0
ax²+bx+c=0
Comparing we get,
a= 1
b= 0
c = -9
Determinant: b²-4ac
= 0² - 4(1)(-9)
= 36>0
D > 0
Therefore, the equation has real and unequal roots.
Algebraic identity:
x² - a² = (x-a)(x+a)
Using this identity
x²-9 = (x+3)(x-3)
Roots are 3 and -3 which are real and not equal to each other
Hope this answer helps you ..
Answer:
217miles is how far he travels
Step-by-step explanation:
I did 62mph * 3 1/2 and got 217.
I'm unsure if this is correct but I tried my best in solving this!
Answer:
15 mph
Step-by-step explanation
i used a calculator but correct me if im wrong pls
Answer:
x^2(3x-5)-9(x_5)
I think that is the answer and hope you will benefit from it
Answer:
y=3x+2
Step-by-step explanation:
slope intercept form
y=mx+b
y=y coordinate
m=slope
x=x coordinate
b= y-intercept
