(y2 - 2) (2y + 5)
This is a fine opportunity to apply the FOILmethod of algebra.
'FOIL' is a memory word to help you remember how to multiply two binomials ... exactly the task presented here.
'FOIL' stands for 'First', 'Outside', 'Inside', 'Last'. Those are the four pairs of terms you have to multiply, and then add the four products together.
First: (y2...) (2y...) = 2y3
Outside: (y2...) (... +5) = 5y2
Inside: (... -2) (2y... ) = -4y
Last: (... -2) (... +5) = -10
Add all 4 results, and there you have it: 2y3 + 5y2- 4y - 10
(4x-8)2 = (4x-8)(4x-8) = 16x2-32x-32x+64 = 16x2-64x+64
-(3x-4) = -3x + 4
The only number in that whole string of words whose value you don't already know, and can change from one minute to the next, is 'x'.
Just take the parenthesis and you will have your answer.
What I mean by this equation is: x^3-2x^(x-2.5)+x^(x^x)
(4x-8)2 = (4x-8)(4x-8) = 16x2-32x-32x+64 = 16x2-64x+64
-(3x-4) = -3x + 4
75r^2-48 You can take out 3.So... 3(25r^2-16) 3-parenthesis-25r squared-minus-16-parenthesis (:
The only number in that whole string of words whose value you don't already know, and can change from one minute to the next, is 'x'.
7a=2(-10)........................................answer is 20/7
The answer is actually -5 because you always would do P.E.M.D.A.S Parenthesis Exponents Multiply Divide Add Subtract 8 plus 6 = 14 9-14=-5
its a math problem
Just take the parenthesis and you will have your answer.
What I mean by this equation is: x^3-2x^(x-2.5)+x^(x^x)
(x - y)2 = x2 - 2xy + y2
No, it is not. To be correct, the expression requires parenthesis, which are missing.
Numerically, if the question looks like this:--(3a + 7b) - 8a - 4b + 2Then the answer is this:--3a - 7b - 8a - 4b + 2= -11a -11b + 2