a2 Completing the square--converting to easy

What number should we multiply 5x² by to "create" a perfect square?

If we multiply the polynomial equation 5x² + 3x - 7 = 0 by 5, the resulting polynomial equation will be:

What number should we multiply the polynomial 25x² + 15x - 35 = 0 by to preserve the square first term, but create an even middle term?

If we multiply the polynomial equation 25x² + 15x - 35 = 0 by 4, the resulting polynomial equation will be:

To solve, you would rewrite as 100x² + 70x + ____ = 140 + ____. What would your box look like?

To solve, you would rewrite as 100x² + 70x + ____ = 140 + ____. What would your finished box look like?

What would your next steps include in solving the equation

(10x + 3)² = 149

Check all that apply:

What would the final solutions to the equation

(10x + 3)² = 149

be: