37 is the correct answer givenbthat 12 and 35 are the original baces but if not then the hypotenuse is 6.08
So the step process for this is to factor it out so this is a complex trinomial so u will have to multiply 2 by -9 and the rest should be in your notes .
then once u factor it out you rearrange those two factored brackets and example of this would be
(x+3)(2x+1)
so x+3=0
therefore x=-3. you bring the 3 over to where the zero is and change the sign
for 2x+1=0
2x=-1
2x/2=-1
x=-1/2
so for this one you isolate for x and in order to get rid of 2x you divide by 2 for both
X intercept (-2,0)
Y intercept (0,-5/2)
Replace the x with 2: f(2)=2*2+7=4+7=11
replace the x with 7: f(7)=2*7+7=14+7=21