(2x – 1)(x + 7) = 0
Did i do this right guessing I distribute
2x*x = 2x^2 + 2x*7=14.
-1* x = x -1*7 = -7
2x^2 +14+ x -7
2x^2 +x = 2x^3
14 -7= 7
2x^3+ 7
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pooja195 (pooja195):
Are we solving for x?
OpenStudy (anonymous):
Solve each quadratic equation. Show your work. that's what it says.
pooja195 (pooja195):
so they want the value of x?
pooja195 (pooja195):
(2x – 1)(x + 7) = 0
We would use the 0 product property right? @jim_thompson5910 :/ am i right?
OpenStudy (anonymous):
Huh?
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jimthompson5910 (jim_thompson5910):
|dw:1437707414800:dw|
jimthompson5910 (jim_thompson5910):
|dw:1437707424790:dw|
jimthompson5910 (jim_thompson5910):
solve each equation for x
pooja195 (pooja195):
i was right :)
pooja195 (pooja195):
@Ashtaroth You are doing more work than needed
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OpenStudy (anonymous):
More work then needed? What do you mean?
pooja195 (pooja195):
You dont need to do all that work just do what @jim_thompson5910 drew
OpenStudy (anonymous):
Oh. Kool then.
OpenStudy (anonymous):
So after that i'm finish?
pooja195 (pooja195):
yes u will have 2 solution's
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OpenStudy (usukidoll):
after you solve those equations .. yes.. there should be x = (two numbers)