Select the product of (7x - 4)(3x + 9)

Sasini....I believe you multiplied incorrectly..... 9 times 7x is 63x, not - 63x......I'll still give you points for a good attempt......

(7x - 4)(3x + 9)    ....using "FOIL." we have

21x^2 - 12x + 63x - 36  =

21x^2 + 51x -36

(7x -4)(3x +9)

21x^2 -63x -12x +36

21x^2 -75x +36

that is the multipy of (7x-4)(3x + 9)