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29 May, 17:18

Place the indicated product in the proper location on the grid.

(x2 + 4) (x2 - 4)

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Answers (1)
  1. 29 May, 20:35
    0
    (x2 + 4) • (x + 2) • (x - 2)

    Reformatting the input:

    Changes made to your input should not affect the solution:

    (1) : "x2" was replaced by "x^2". 1 more similar replacement (s).

    Step by step solution:

    Step 1:

    Polynomial Roots Calculator:

    1.1 Find roots (zeroes) of : F (x) = x2+4

    Polynomial Roots Calculator is a set of methods aimed at finding values of x for which F (x) = 0

    Rational Roots Test is one of the above mentioned tools. It would only find Rational Roots that is numbers x which can be expressed as the quotient of two integers

    The Rational Root Theorem states that if a polynomial zeroes for a rational number P/Q then P is a factor of the Trailing Constant and Q is a factor of the Leading Coefficient

    In this case, the Leading Coefficient is 1 and the Trailing Constant is 4.

    The factor (s) are:

    of the Leading Coefficient : 1

    of the Trailing Constant : 1,2,4

    Let us test ...

    P Q P/Q F (P/Q) Divisor

    -1 1 - 1.00 5.00

    -2 1 - 2.00 8.00

    -4 1 - 4.00 20.00

    1 1 1.00 5.00

    2 1 2.00 8.00

    4 1 4.00 20.00

    Polynomial Roots Calculator found no rational roots

    Trying to factor as a Difference of Squares:

    1.2 Factoring: x2-4

    Theory : A difference of two perfect squares, A2 - B2 can be factored into (A+B) • (A-B)

    Proof : (A+B) • (A-B) =

    A2 - AB + BA - B2 =

    A2 - AB + AB - B2 =

    A2 - B2

    Note : AB = BA is the commutative property of multiplication.

    Note : - AB + AB equals zero and is therefore eliminated from the expression.

    Check : 4 is the square of 2

    Check : x2 is the square of x1

    Factorization is : (x + 2) • (x - 2)

    Final result:

    (x2 + 4) • (x + 2) • (x - 2)
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