(16 + 3) + (16 x 3) =
19 + 48 =
67
6x3 - 27x2 + 3x + 36 = 3 (x - 4) (x + 1) (2x - 3)
Rearrange: 4x5 + 6x2 + 6x3 + 9 Group: 2x2 (2x3 + 3) + 3 (2x3 + 3) Simplify to get your answer: (2x2 + 3) (2x3 + 3)
24x^5 + 24x^3 = 24x^3(x^2 + 1)
6x(3-3)x(2+12)
You don't know that?! If x=3, then 6x is 6x3. So 18 plus 2 is.....20!!
-6x3 + 4x7 - 0.8x2 + x4 - 5x5 = 4x7 - 5x5 + x4 - 6x3 - 0.8x2 = x2 (4x5 - 5x3 + x2 - 6x - 0.8)
The answer is 37.
6x³ +12x + 18 = 6(x + 1)(x² - x + 3)
6x3 - x2 + 17 = 2x2 + 47 6x3 - x2 - 2x2 = 47 - 17 x2(6x - 1 - 2) = 30 this is the simplest factorisation.
6X3 is 6, 3 times. 6, 3 times is 6+6+6. 6+6+6=18. 6X3=18. :)
39-15+18 6x3 Answer: 25
2x3