In the equation above, is a constant. If the equation is true for all values of , what is the value of ?A)B)C)D) Loading... Page navigation ← Daily PWN 069 Daily PWN 071 →

on the second to last line you have a typo the 2x should be a 3x 18X^2+15x-12=(18x^2=12x+2x+2)+a, should be 18x^2+15x-12=(18x^2+12x+3x+2)+a Log in to Reply

What happened to the (3x+2) on the left? You multiplied it out on the right-hand side but it seemed to disappear on the left. Am I missing something? Log in to Reply

Thanks for the question! It’s multiplied on both sides but I didn’t fully show my work on the left–I just used words (“multiply by the denominator”). I will revise the math to show that first step more clearly. Log in to Reply

## Comments (4)

on the second to last line you have a typo the 2x should be a 3x

18X^2+15x-12=(18x^2=12x+2x+2)+a, should be 18x^2+15x-12=(18x^2+12x+3x+2)+a

Thank you—fixed.

What happened to the (3x+2) on the left? You multiplied it out on the right-hand side but it seemed to disappear on the left. Am I missing something?

Thanks for the question! It’s multiplied on both sides but I didn’t fully show my work on the left–I just used words (“multiply by the denominator”). I will revise the math to show that first step more clearly.