HELP IN MATH PLS, THANK YOU

-28x^4y^6

Step-by-step explanation:

-4y^2 x 7x^3+1y4

-4 x 7x^4y^2+4

-4 x x7x^4y6

-28x^4y^6

need more points stingy

step-by-step explanation:

no, her answer is not correct.   we square the lengths of all sides and then determine whether the pythagorean theorem holds here:

9² + 15² = 306.   this is not equal to the square of the longest side ( that square being 395.   answer c is correct.

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!