anonymous
  • anonymous
Can someone explain how to solve this please! Medal! (2x – 1)(x + 7) = 0
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
jamiebookeater
  • jamiebookeater
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
http://wolframalpha.com/
ybarrap
  • ybarrap
$$ (2x – 1)(x + 7) = 0\\ 2x\times x+2x\times 7-1\times x-1\times 7=0 $$ Does this make sense? Can you simplify?
Pawanyadav
  • Pawanyadav
Put the two brackets separately =0 and solve

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

ybarrap
  • ybarrap
A simpler way is this $$ x+7=0\\ 2x-1=0 $$ Because in the product, if EITHER of these is zero, the whole thing is zero. So you will have TWO solutions. That means two different values for x.
Pawanyadav
  • Pawanyadav
You will get two valves of x
ybarrap
  • ybarrap
For x+7=0 What value of x will make this equal to zero?
Pawanyadav
  • Pawanyadav
Just substract 7 from both side
Pawanyadav
  • Pawanyadav
Another value of x is 1/2 tell me how?
Pawanyadav
  • Pawanyadav
Do you understand ?
anonymous
  • anonymous
yes but can you do a summary of it all in one post im not really seeing it together
Pawanyadav
  • Pawanyadav
First x+7=0 (substract 7 from both side) x=-7 Second 2x-1=0 (add 1 both side) 2x=1. (divide by 2 both sides) x=1/2 So you get x=-7 and1/2

Looking for something else?

Not the answer you are looking for? Search for more explanations.