Please help I don’t understand anything! I watched some videos but I just don’t understand.

Using the quadratic formula find the zeros of the given polynomial -5x^2+3x-11

With this question substitute t=3 and t=5 to determine if the two expressions are equivalent. 4(t + 3) 4t+12 which statements are true? check all that apply. a. the value of both expressions when t =5 is 32. b. the two expressions are not equivalent. c. the value of both expressions when t=3 is 15. d. the value of both expressions when t=5 is 23. e. the two expressions are equivalent. f. the value of both expressions when t=3 is 24.

When 142 is added to a number the result is 64 more then 3 times the number. option 35 37 39 41