Answer:
7. 3, and 1/2
8. -4+sqrt17, and -4-sqrt17.
Step-by-step explanation:
What you do is you use the quadratic formula which is -b+/-sqrtb^2-4ac/2a.
A equals the x^2.
B equals the x
C equals the regular number.
7. a=2, b=-7, c=3. You blug those numbers into the equation. +7+/-sqrt(-7)^-4(2)(3)/2(2).
7+/-sqrt49-24/4.
7+/-sqrt25/4.
7+/-5/4.
Your answers after reducing it are 3, and 1/2.
You will do the same thing with problem 8 as well and your answers for 8 are 4+sqrt17, and -4-sqrt17.
