3
x
−
2
y
=
10
−
3
x
+
3
x
−
2
y
=
−
3
x
+
10
0
−
2
y
=
−
3
x
+
10
−
2
y
=
−
3
x
+
10
Answer:
Step-by-step explanation:
1). Given equation is,
2x² - 3x = 6
2x² - 3x - 6 = 0
To find the solutions of the equation we will use quadratic formula,
x = 
Substitute the values of a, b and c in the formula,
a = 2, b = -3 and c = -6
x = 
x = 
x = 
x = 
Therefore, there are two real solutions.
2). Given equation is,
x² + 1 = 2x
x² - 2x + 1 = 0
(x - 1)² = 0
x = 1
Therefore, there is one real solution of the equation.
3). 2x² + 3x + 2 = 0
By applying quadratic formula,
x = 
x = 
x = 
x = 
x = 
Therefore, there are two complex (non real) solutions.
$0.58 + $0.58
$1.16
total cost of all 3 will be $1.16 since he only got two at the sale price
The "I"'s r variables, now u do 2-5 which sequels -2. now u do 4+7 and that ='s 11. now I think u take 11 and -2 and u subtract 11-(-2). or it could be change the negative into a positive and add them together.