Please help explain the easiest way

Simplify 24÷(-2)(3)+7 a. -29 b. 3 c. 11

Rewrite the following quadratic functions in intercept or factored form. show your work. f(x) = 3x^2 - 12

Worth 100 points need the answers asap first row -x^2 2x^2 (x/2)^2 x^2 x is less than 2 x is greater than 2 x is less than or equal to 2 x is greater than or equal to 2 second row -5 -5/2 4 5 •2 is less than x& x is less than 4 •2 is less than or equal to x & x is less than or equal to 4 •2 is less than or equal to x& x is less than 4 •2 is less than x& x is less than or equal to 4