Get our expert's

answer on brainly

SEE EXPERT ANSWER

Get your **free** account and access **expert** answers to this and **thousands** of other questions.

I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!

Get this expert

answer on brainly

SEE EXPERT ANSWER

Get your **free** account and access **expert** answers to this and **thousands** of other questions

do you recall the setup of the quadratic formula?

\[\frac{ -b \pm \sqrt{b ^{2}-4ac} }{ 2a }\]

a=16 b=40 and 25=c

good, i notice that there are no - signs to worry about so that looks good so far

what do i do next?

plug in those numbers into their abc parts in the formula, the rest is just math for maths sake

\[\frac{ -40\pm \sqrt{40^{2}-4(16)(25)} }{ 2(16) }\] is that right?

looks good to me :)

ok then i get 40 pm 16-96/32?

but i would end up eith a negative number....

you lost me at the second one you did how did you get all the the ^2?

40^2 = (4*10)^2 = 4*10 * 4*10 = 4^2 * 10^2
but you dont have to do exactly what i did

uuuuh.....im sorry you lost me all i know is im suppose to square 40 is that what you were doin?

but 40^2 - 4(16)(25) = 0

ui havent learned taht i think im suppose to just use the big numbers

then math it out for maths sake, youll get big numbers that finally reduce and simplify

what does 1600 - 1600 equal?

0 -_- i cant square 0

sure you can, 0*0 = 0

oooooh......

so -40 pm 0/32?

yes /32 is fine as well

THANK YOU SO MUCH!!!!!

youre welcome

so its -40/32?

yes, which a calculator should be able to put into decimals for you

-1.25?

correct

thank you!