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Answer:
(4x^2)^2 - 2(4x^2)(9y^2) +(9y^2)^2
(4x^2 - 9y^2)
hope this helps you
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Answer:
Hi
Step-by-step explanation:
((16×(x⁴))-((72×(x²))×((y²)))+3⁴y⁴
((16×(x⁴))-((2³×3²×y²))+3⁴y⁴
(2⁴x⁴-(2³×3²x²y²))+3⁴y⁴
factoring 16⁴-72yx²y²+81y⁴
Try to factor this multi-variable trinomial using trail and error
Found a factorization:(4x²-9y²)×(4x²-9y²)
16x⁴-72x²y²+81y⁴ is. a perfect square
It factors into (4x²-9y²)×(4x²-9y²)
which is another way of writing (4x²-9y²)²
How to recognize a perfect square trinomial:
*It has three terms
*Two of its terms are perfect squares themselves
*The remaining term is twice the product of the square roots of the other two terms
Factoring:4x²-9y²
put the exponent aside,try to factor 4x²-9y²
Theory:A different 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 I therefore eliminated from the expression.
Check:4 is the square of 2
Check:9 is the square of 3
Check:x² is the square of x¹
Check:y² is the square of y¹
Factorization is:(2x+3y)×(2x-3y)
Rais the exponent which was put aside
Factorization becomes:(2x+3y)²×(2x-3y)²
Final result (2x+3y)²×(2x-3y)²
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