Question

looking for help finding factors that when multipied equal 430 but when added equal 76. Can anyone help?

Answer 1

Are you sure it isn't 420? If it is, it is 6 and 70

Answer 2

no unfortunely it is 430.

Answer 3

x*y = 430
x+y = 76

Answer 4

x*y = 430
y = 76-x

Answer 5

x*(76-x)=430
y = 76-x

Answer 6

what do u mean factors? do u mean just 2 numbers?

Answer 7

76x-x^2 = 430
y = 76-x

Answer 8

like a . b = 430 and then a+b=76

Answer 9

OMG this place crashes too much
so:
-x^2 +76x - 430 = 0

Answer 10

let's see if discriminant works:
D = 76^2 - 4 * (-1) * (-430) = 5776 - 1720 = 4056

Answer 11

Uhmm.. r us sure the problem is right? Because radical D is 63.68673331, etc..

Answer 12

i'm still thinking that blexting was right.. the question is supposed to have a 420.. Nobody in their right mind would assign a problem with decimals.. well unless ur dealin with physics

Answer 13

ok maybe i went about this the wrong way. i am look for an answer for -2x squared+76x+ 430. supposed to factor by grouping i think. trying to figure it out might have messed u

Answer 14

oops mean up*

Answer 15

I think this way it makes sense.. and if u can't factor use quadratics. it's much easier

Answer 16

-2x^2 + 76x + 430 = 0
by the way is it + 430 or - 430?

Answer 17

D = 76^2 - 4 * (-2) * 430 = 5776 + 3440 = 9216

Answer 18

x1 = (-76-sqrt(9216))/(2*(-2)) = (-76 - 96)/-4 = 43

Answer 19

x2 = (-76+sqrt(9216))/(2*(-2)) = (-76 + 96)/-4 = 20/-4 = -5

Answer 20

So to factor ur equation you would have:
(x-43)(x+5)=0

Answer 21

Please click on become a fan if I helped, I really want to get to the next level!! Thanks =)

Answer 22

First of all if -2x^2 + 76x + 430 = 0 is the equation
Then the first thing you do is to factor out the -2 (common factor)
-2(x^2 - 38x - 215) = 0
Then you would be looking for factors of 215 that subtract to get 38

Which would be 43 and 5
So it would factor into -2(x - 43)(x + 5) = 0