Question

PLEASE HELP?? reward an medal will be granted
9.) what multiplies to = -40 and adds/subtracts to equal -3???

10.) What multiplies to equal -60 and adds/subtracts to equal 7????

11.) what multiplies to equal 24 and adds/subtracts to equal -10????

Answer 1

@mathmale @nincompoop @Shamil98 @Wolfe8 @charlotte123 @Nuke_ur_friend @Hero @adrynicoleb PLEASE HELP

Answer 2

9) xy=-40, x(-/+)y=-3
10) xy=-60, x(-/+)y=7
11) xy=24, x(-/+)y=-10

I think that's how you set it up

Answer 3

9.) x^2 -3x-40=0

10.) x^2 +7x-60=0

11.) x^2-10x+24=0

12.) x^2-12x+20=0

14.) x^2-17x+70=0

X-box factoring last numeral goes on top part of x and middle x number goes on bottom. I'm struggling findng what numbers multiply together to equal top and add together to equal bottom though????? @wolfe8

Answer 4

@Elliot943

Answer 5

@Mel98

Answer 6

@bibby

Answer 7

I don't know how to do this, but I tagged Bibby, he may be able to

Answer 8

Question is this where we draw an 'x' and multiple the \(x^2\) term by the constant and then put it on top of the 'x'?

x^2 -3x-40=0

So:

-3 on the bottom of 'x'.
1 * -40 = -40 on the top of 'x'.

Answer 9

@LanguageEnthusiast I have that part done/ But what two numbers multiply to equal -40 and add/subtract to equal -3??

Answer 10

-8 * 5 = -40
-8 + 5 = -3

Answer 11

10)
-5 * 12 = -60
-5 + 12 = 7

Answer 12

@perl please look above i asked like 5 questions

Answer 13

11)
-6 * -4 = 24
-6 + (-4) = 10

Answer 14

12)
-10 * -2 = 20
-10 + (-2) = -12

Answer 15

you can make a table of factors,

Answer 16

yeah i did that i just need help with the 2 numbers. tho that's what stumps me.

Answer 17

pick one you want to work on,

Answer 18

and make it a tough one ;)

Answer 19

just kidding :D

Answer 20

14.) x^2-17x+70=0

15.) x^2-13x+12=0

16.) x^2+15x+44=0 Is 3 too many????

Answer 21

i can only solve one at a time , ok lets do 14)

Answer 22

brb, one sec , afk