Answer:
step 3
Step-by-step explanation:
take away 2 add 4 then multiple 9000 then divide 1 then you got your answer 20/56.
aX²+bX+c=0
a=1
b=-8
c=12
i think its x= 0.75
substitute:
8x × 5 = 40x
8x × 10 = 80x
8 × 5 = 40
5 × 10 =50
40x + 80x = 40 + 50
add like terms
so it'd be:
120x = 90
now divide 90 by 120 and that would give you the value of x alone which is 0.75
