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If the expression is (x - y)2, the solution is (7 - -2)2 = (7+2)2 = 92 = 81.

If the expression is x - y2, the solution is 7 - (-2)2 = 7 - 4 = 3.

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What is the value of expression 3c2 plus 9 when c equals 4?

c = 4, c squared = 16, 3c squared = 48, 48 + 9 = 57.


The vertex of this parabola is at 5 5 When the x-value is 6 the y-value is -1 What is the coefficient of the squared expression in the parabola's equation?

The vertex of this parabola is at 5 5 When the x-value is 6 the y-value is -1. The coefficient of the squared expression in the parabola's equation is -6.


What is the value of the expression 4x-2y plus xy when x equals -1and y equals 5?

To find the value of the expression 4x - 2y + xy when x = -1 and y = 5, we first substitute the values of x and y into the expression. This gives us 4(-1) - 2(5) + (-1)(5). Simplifying this further, we get -4 - 10 - 5, which equals -19. Therefore, the value of the expression is -19 when x = -1 and y = 5.


What is the expression for x equals 3 and y equals 6?

A mathematical expression in its' most simplistic form, merely assigns a value to a variable. Don't confuse an expression with an equation. An equation requires a solution. An expression cannot be "solved". It only allows you to determine the value of a variable. This is the expression in words "x is equal to 3" (X is the variable which is equal to the constant number 3) This is the expression in numbers "x=3" The expression in words "y is equal to 6" (Y is the variable which is equal to the constant number 6) The expression in numbers is "y=6" I hope you understand now.


X squared plus 16x plus a equals parenthesis x plus b parenthesis squared In the equation above a and b are constants if the equation is true for all value of x what is the value of a?

a=64 b=8 (x+16x+64)=(x+8)^2