May 6, 2024 · Substitute u=2^x to get u^2-u-12=0 and thus u=-3 or u=4. To get 2^x=4 you need x=2, and to get 2^x=-3 you need log_2 (-3) for x.

May 5, 2024 · The answer to 10+(2 - 0 ) is 12 . This equation follows the order of operations , where the parentheses are evaluated first , resulting in 2 , and then the ...

Apr 28, 2024 · How do you solve for x^2+12x-9=0? Solve by completing the square: x2+12x−9=0 x 2 + 12 x − 9 = 0. x2+12x=9 x 2 + 12 x = 9. x2+12x+36=9+36 x 2 + 12 x + 36 = 9 + ...

Apr 27, 2024 · The equation to be solved is: abs(3–2x) + abs(x) = 12. The method of solving is to consider all combinations of regions where each of the absolute value terms ...

May 4, 2024 · Zero is a place holder in math. It keeps the numbers in the correct column. it has no value. It is nothing. 10times nothing = nothing. what do you have in your ...

May 7, 2024 · To solve for A, we can divide both sides of the equation A×12=72 by 12. ... Since square roots cannot be negative, therefore x≥0 x ≥ 0 ... 0. This gives us three ...

Apr 24, 2024 · Since you have 3x + 4y = 0, you can substitute y = 3x/4 in the other equation. That gets you 2x^2 + 6x^2 + 12 = 0, so 8x^2 + 12 = 0. Slight problem there since ...

Apr 24, 2024 · A trillion is 1 followed by 12 zeros. In other words, a trillion is one thousand billion.

Apr 27, 2024 · Easy. Just split it into two equations: x-7=0 and x+3=0 because either factor must be 0 for the whole thing to be 0. Then solve each mini-equation to get ...

May 4, 2024 · The driving force behind zero was to denote emptiness. When counting was first invented by using rocks, humans did not have to worry about counting “nothing.” ...