8(x2 + 2x + 1) = –3 + 8
x = –1 Plus or minus StartRoot StartFraction 5 Over 8 EndFraction EndRoot
x = –1 Plus or minus StartRoot StartFraction 4 Over 8 EndFraction EndRoot
8(x2 + 2x + 1) = 3 + 1
8(x2 + 2x) = –3
I think it’s 15 sorry if I’m wrong
<span>-4y+2=(-2)
-4y=-2-2
-4y=-4 divide both sides by -4
y=1</span>
C- elemination or reduction
Method of elimination or reduction
Adding two equations is to obtain a new equation whose right (left) member is the sum of the right (left) members of the equations that are added together.
<span> 7X+5y=19
-7X-2y=-16.
</span> Adding two equations
3y=3 ---> y=1
then
7x+5(1)=19
7x=19-5
x=14/7=2