Please help......I have a test tomorrow and don't know how to do this.... 4(X^2-3)-2(x^2-5x+4) find x and evaluate.

Question

Please help......I have a test tomorrow and don't know how to do this.... 4(X^2-3)-2(x^2-5x+4)  find x and evaluate.

anonymous · Answer

Will give medal=]

anonymous · Answer

check the problem again...
is this supposed to be an equation???

anonymous · Answer

yes its supposed to be a quadratic equation its on my study guide

anonymous · Answer

where is the equal sign???

anonymous · Answer

There is none can you evaluate it instead?

anonymous · Answer

Here is another on my study guide   (4x-9)(5x+2)

anonymous · Answer

since there is no equal sign, there is no equation to solve for x...
but we can find the value of that expression if we were given a value for x...

anonymous · Answer

the instructions say to evaluate the expression.....

anonymous · Answer

oh ok then....
they must give you a value for x in order to evaluate the expression... 
what's the value of x?

anonymous · Answer

maybe they want you to create a table of different values of the expression for different values of x?

anonymous · Answer

im supposed to use FOIL to evaluate the expression

anonymous · Answer

Im not sure if we are supposed to solve for X because it jsut says eevaulate

anonymous · Answer

ok.... FOIL it is...
btw... do you know what FOIL stands for?

anonymous · Answer

yes

anonymous · Answer

also, you do not use foil to evaluate an expression..... you use FOIL to multiply (expand) the expression...

anonymous · Answer

let's use your second example:  (4x-9)(5x+2)

anonymous · Answer

ok

anonymous · Answer

|dw:1355880426472:dw|
ok...
can you combine like terms to simplify the quadratic expression???