the hypotenuse of an isosceles right triangle is 9cm longer than either of is legs.find the EXACT length length of each side
Hi Darlene, I agree with your answer up to the roots that are different than the ones you present, please take a look at your three last steps.
L2 + L2 = (L+9)2
2L2=L2 + 18L + 81
L2 - 18L - 81 = 0
L1= 21.73 m
The other root is negative and the answer is not common sense.