You have to start with the left triangle and find the side lengths. Since it is a 45-45-90, both sides are the same. Rule for this is hyp= sqrt2 * leg
Since hyp = 6sqrt2, the leg is 6.
The leg is also the hypotenuse of the triangle on the right side.
x is the side across from the hypotenuse and it is the short leg so x = (1/2)6
x = 3
3x^2 + x - 3 - (x^2 - 5x + 1) =
3x^2 + x - 3 - x^2 + 5x - 1 =
2x^2 + 6x - 4 <===
Answer:
d=-39
Step-by-step explanation:
-4=d+35 -35 on both sides to get d=-39
Now let's check:
-39+35=-4
Is this correct? Yes!
Hope this helps :D