Answer:
x = 3 or x = - 6
Step-by-step explanation:
Factor and Solve. x^2 + 3x - 18 = 0
We can use the Diamond method of factoring.
Factor -18 = 6 * -3; and 3 = 6 + -3
so
x^2 + 3x - 18 = x^2 -3x + 6x - 18 = 0
= (x^2 -3x) + ( 6x - 18) = 0
= (x^2 -3x) + ( 6x - 18) = 0
= x(x - 3) + 6*(x - 3) =0
= (x - 3)*(x + 6) = 0
so Either x - 3 = 0 or x + 6 = 0
x = 3 or x = - 6
Answer:
4K - 7
Step-by-step explanation:
Correct answer:
19.7ft
Explanation:
This problem is solved using the Pythagorean theorem (a2+b2=c2). In this formula a and b are the legs of the right triangle while c is the hypotenuse.
Using the labels of our triangle we have:
o2+a2=h2
\dpi{100} h^{2}=(10ft)^{2} +(17ft)^{2}
h2=100ft2+289ft2
h=389ft2−−−−−√
Correct Answer →19.7ft
Hope this helps!
Sincerely; Victoria<3
Answer: {-4,0,6}
Step-by-step explanation:
3x = 0 x-6=0
x = 0 x=6
x+4=0
x=-4
The equation would be X +21+ 2X +17+ 2X +17 equals 180 when solved you get X equals 25