If x=4
If x=4 and y=-3, what is the value of the expression x² + 2xy - 4x + 3y + y²?
Correct answer:

You need to know the following knowledge to solve this word math problem:
Related math problems and questions:
- Variables: 3140
Determine the value of the expression 3a + 2b - a ^ 2 - 4b ^ 2 for the values of the variables: a) a = - 1, b = 3 b) a = 2, b = -1 c) a = -2, b = -3 d) a = 4, b = 2 e) a = -5, b = 0
- Expressions 3
If k(x+6)= 4x² + 20, what is k(10)=?
- Calculate 25111
The quadratic function has the formula y = -2x²-3x + 8. Calculate the function value in points 5, -2 and ½.
- What is 10
What is the measure of the square side whose area is (4x² + 28x+49) square units?
- Trapezoid 15
Area of trapezoid is 266. What value is x if bases b1 is 2x-3, b2 is 2x+1 and height h is x+4
- Completing square
Solve the quadratic equation: m2=4m+20 using completing the square method
- Expression 4451
Find the largest natural number d that has that property for any natural number the number n is the value of the expression V (n) = n ^ 4 + 11n ^ 2−12 is divisible by d.
- Evaluate expr with 2 vars
If a=6 and x=2, find the value of (2ax + 7x- 10) /(4ax-3a-2)
- Find the 2
Find the term independent of x in the expansion of (4x3+1/2x)8
- Center
Calculate the coordinates of the circle center: x² -4x + y² +10y +25 = 0
- Substituting 3165
Determine the value of the expression by substituting for the variables a = 5, b = 2, x = 3, y = 1: k = 4ab + 1/2 ab - 14 l = x² + 2xy + y² m = 5b³ - 4b2
- Expressions
Find out value of expressions if a = -1, b =2: x=b - 2a - ab y=a³ - b² - 2ab z=a² b³ - a³ b² w=a + b + a³ - b2
- Determine 4104
Determine the value of x in this equation: (0.125^x) · 104 = 5000
- Square root 2
If the square root of 3m² +22 and -x = 0, and x=7, what is m?
- Evaluate 5
Evaluate expression x2−7x+12x−4 when x=−1
- Two expressions
When x = 3 and y = 5, by how much does the value of 3x² – 2y exceed the value of 2x² – 3y?
- Polynomial 6321
Simplify polynomial entry: (x + 2)² + (x-2) (x + 2)