x^2 - 10x + 24 = 0
is it x = -4 and x = -6
or is it x = 4 and x = 6
very confused, please help!

Question

x^2 - 10x + 24 = 0
is it x = -4 and x = -6
or is it x = 4 and x = 6
very confused, please help!

ganeshie8 · Answer

plug $x = 4$ in the equation and see if it satisfies

pokiedokie · Answer

okay, give me a minute

pokiedokie · Answer

it doesn't seem to work

pokiedokie · Answer

but i factored the equation so it's left to either x = 4 or x = 6, or, x = -4 or x =-6, and i get mixed up with negatives so i guess i just need reassurance

pokiedokie · Answer

i think it might be the negatives

ganeshie8 · Answer

x^2 - 10x + 24 = 0

replace x by 4

4^2 - 10*4 + 24 = 0

16 - 40 + 24 = 0

0 = 0

which is a true statement, so 4 is indeed a solution

ganeshie8 · Answer

it is important that you know how to check if a number satisfies an equation or not

pokiedokie · Answer

okay, next time i'll try and work through it slower, thank you very much for helping me, i appreciate it!