Question

HELP FOR 13 point bsbshshs

Answer 1

-20 is -10 × 2

-1 is -0.5 + -0.5

Answer 2

Answer:

-5 and 4

Step-by-step explanation:

Use a system of equations. Let $x$ be the first number and $y$ be the second number

The first equation will be a product, $xy=-20$, and the second will be a sum, $x+y=-1$

Solve the second equation for $x$, which results in $x=-1-y$, and substitute into the first equation.

$(-1-y)y=-20$

Distribute

$-y-y^{2} =-20$

Set equal to zero

$y^{2}+y-20=0$

Factor

$(y+5)(y-4)=0$

So $y=-5$ or $y=4$

When $y=-5$, then $x=-1-(-5)$ or $x=4$

When $y=4$, then $x=-1-4$ or $x=-5$