X²+9³×99=144342 ill mark as brainliest

x=27First, since you are multiplying by 99 you have to do the opposite and divide by 99 on both sides to get x^2+9^3= 1458Next, you get rid of the exponent on the 9^3 by multiplying 9 * 9 * 9 to get 729 and subtract from both sides to get x^2 = 729Finally, you get rid of the exponent on the x by taking the square root of both sides to get x = 27

The first one minimumi hope my answer you.