What should be added to 3 times 39 to get 12 times 39 (a) 4×39 (b) 9×12 (c) 9×39 (d) 15 ×39

Its due ! write an equation in which the quadratic expression 2x^2-2x 12 equals 0. show the expression in factored form and explain what your solutions mean for the equation. show your work.

Given abcd ac=38 and ae=3x+4 find the value of x

Write the fraction or mixed number and the decimal shown by the model