I did it by myself and i keep getting the wrong answer I really need help I WILL GIVe BRAINLIEST

What is the definition of exponential decay?

Follow these steps using the algebra tiles to solve the equation −5x + (−2) = −2x + 4. 1. add 5 positive x-tiles to both sides and create zero pairs. 2. add 4 negative unit tiles to both sides and create zero pairs. 3. divide the unit tiles evenly among the x-tiles. x =

Solve each quadratic equation by factoring and using the zero product property. n^2 - 49 = 0