SOLUTION: Solve using the principle of zero products
(x - 2)(2x + 8)(3x + 9) = 0
this is what i cam up with am i doing this right?
30 + -21x + 3x2 = 0
3(10 + -7x + x^2) = 0 gcf is 3
3(
Algebra.Com
Question 325625: Solve using the principle of zero products
(x - 2)(2x + 8)(3x + 9) = 0
this is what i cam up with am i doing this right?
30 + -21x + 3x2 = 0
3(10 + -7x + x^2) = 0 gcf is 3
3((2 + -1x)(5 + -1x)) = 0
2 + -1x = 0
2 + -2 + -1x = 0 + -2
0 + -2 = -2
-1x = -2
Divide each side by '-1'.
x = 2
5 + -1x = 0
5 + -5 + -1x = 0 + -5
5 + -5 = 0
0 + -1x = 0 + -5
-1x = 0 + -5
0 + -5 = -5
-1x = -5
0 + -5 = -5
-1x = -5
Divide each side by '-1'.
x = 5
x = {2, 5} am i doing this right????
Answer by JBarnum(2146) (Show Source): You can put this solution on YOUR website!
a 2 and 3 can be factored out
set each = to 0
x={-4,-3,2}
RELATED QUESTIONS
(I need help with this problem!! Please!! If also with work shown?)
Solve using the... (answered by mananth)
Solve by factoring and using the principle of zero products:... (answered by Fombitz)
Solve by factoring and using the principle of zero products:
3x^2 + 8x = 9 + 2x
(answered by stanbon)
Solve by factoring and using the principle of zero products:
3x^2+8x=9+2x
(answered by jsmallt9)
Solve by factoring and using the principle of zero products... (answered by mathie123)
Solve using the principle of zero products.
(x - 2)(2x + 8) =... (answered by Earlsdon)
Solve by factoring and using the principle of zero products: 2x^2-11x+15=0
I am not... (answered by tutorcecilia)
solve by factoring and using the principle of zero products....(5x +8)(x + 2)= 29x +... (answered by reviewermath)
I am an older student in Algebra and it is sooooooo confusing. I am having trouble with... (answered by elima)