What's does A equal?

Solve each quadratic equation by factoring and using the zero product property. 14x - 49 = x^2

One astronomical unit (1 au) is about 1.496 alt tag missing. kilometers. if you wrote this number of kilometers in regular decimal notation (for example, 528 and 3,459 are written in regular decimal notation), how many zeros would your number have?

Zahra wants the equation below to have an infinite number of solutions when the missing number is placed in the box.