Question

The square of a number decreased by ten times the number is negative nine.

Answer 1

Replace key words with variables, numbers, and operations. “A number squared” is a power where the base is the variable and the exponent is 2. “Decreased by ten” means you must subtract 10 from the squared number.

Explanation:

hope this helps

Answer 2

answers are 1 and 9

Explanation:

x² - 10x = -9

x² - 10x + 9 = 0

(x - 9)(x - 1) = 0

x = 9, x = 1