Question about Texas Instruments TI-83 Plus Calculator
What you meant to type was (-3)^4. The calculator is doing 3^4, then applying the negative sign when you type it the way you did.
Posted on Sep 09, 2007
The calculator is mathematically correct. -3 x -3 x -3 x -3 = 81
Posted on Sep 05, 2007
Tips for a great answer:
Here, We deal with Some Special Products in Polynomials.
Certain products of Polynomials occur more often
in Algebra. They are to be considered specially.
These are to be remembered as Formulas in Algebra.
Remembering these formulas in Algebra is as important
as remembering multiplication tables in Arithmetic.
We give a list of these Formulas and Apply
them to solve a Number of problems.
We give Links to other Formulas in Algebra.
Here is the list of Formulas in
Polynomials which are very useful in Algebra.
Formulas in Polynomials :
Algebra Formula 1 in Polynomials:
Square of Sum of Two Terms:
(a + b)2 = a2 + 2ab + b2
Algebra Formula 2 in Polynomials:
Square of Difference of Two Terms:
(a - b)2 = a2 - 2ab + b2
Algebra Formula 3 in Polynomials:
Product of Sum and Difference of Two Terms:
(a + b)(a - b) = a2 - b2
Algebra Formula 4 in Polynomials:
Product giving Sum of Two Cubes:
(a + b)(a2 - ab + b2) = a3 + b3
Algebra Formula 5 in Polynomials:
Cube of Difference of Two Terms:
(a - b)3 = a3 - 3a2b + 3ab2 - b3 = a3 - 3ab(a - b) - b3
Algebra Formula 8 in Polynomials:
Each of the letters in fact represent a TERM.
e.g. The above Formula 1 can be stated as
(First term + Second term)2
= (First term)2 + 2(First term)(Second term) + (Second term)2
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