the thanks to undergo in concepts is to do the mathematics interior the parentheses first. so for you to commence with 2 x 4 = 8. then you definitely'd do 5 x 4 = 20. then you definitely'd paintings outdoors the parentheses. 8 x 20 = one hundred sixty. one hundred sixty - 23 = 137. See? reliable luck!
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30X^3 - 6X^2
All you do is go left to right. Multiply 6 x 5, then add the number of Xs (X + X^2 = X^3) this gives you the 30X^3
Next you multiply 6 x -1, then add the number of Xs again to get -6X^2
the thanks to undergo in concepts is to do the mathematics interior the parentheses first. so for you to commence with 2 x 4 = 8. then you definitely'd do 5 x 4 = 20. then you definitely'd paintings outdoors the parentheses. 8 x 20 = one hundred sixty. one hundred sixty - 23 = 137. See? reliable luck!
30x^2 - 6x^2
Please answer mine