Question

Which expression is equivalent to (3x^2-7)?

Answer 1

Answer:

The expression which are equivalent to,

$(3 x^2-7), are\\\\1.3 x^2-7\\\\ =(\sqrt 3 x)^2 - (\sqrt {7})^2\\\\ =(\sqrt 3 x - \sqrt {7})\times(\sqrt 3 x + \sqrt {7})\\\\(\sqrt 3 x + \sqrt {7})\times(\sqrt 3 x - \sqrt {7})\\\\2. -7 +3 x^2\\\\3.\text{used the identity},a^2 - b^2=(a+b )(a-b)\\\\ AB=BA\rightarrow {\text{Commutative property}$

Answer 2

Answer:

Which expression is equivalent to (3x^2-7)?

3x²-7