for-the-following-polynomial-expression-perform-the-indicated-operations-to-simp-7

Question

For the following polynomial expression, perform the indicated operations to $$simplify.(9k^{2}$$ - $$7x)(9k^{2} + 7x)$$

Accepted Answer

$$81k^{4}$$ - $$49x^{2}$$

Answer

$$49k^{4}$$ - $$81x^{2}$$

Answer

$$81k^{4}$$ - $$126xk^{2}$$ - $$49x^{2}$$

Answer

$$81k^{4}$$ - $$126xk^{2}$$ + $$49x^{2}$$

For the following polynomial expression, perform the indicated operations to simplify.(9k2 - 7x)(9k2 + 7x)