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Multiply $1$ times $-6$
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$9a^4-6a^2b^2+b^4$
Learn how to solve factorization problems step by step online. Factor the expression 9a^4+1*-6a^2b^2b^4. Multiply 1 times -6. The trinomial 9a^4-6a^2b^2+b^4 is a perfect square trinomial, because it's discriminant is equal to zero. Using the perfect square trinomial formula. Factoring the perfect square trinomial.