Type the integer that makes the following subtraction sentence true:
-28 - ? = 63

Answer

? = -91

Step-by-step explanation:

Let's keep the question mark as x

x must be a negative number if there is a subtraction sign before it, if the first number of the problem is negative, and the difference is positive.

-28 - (-x) = 63

-28 -1(x) = 63

-1(x) = 63 +28 = 91

  /-1                     /-1

x = -91

? = -91

x + 4/7

step-by-step explanation:

use cymath

answer is 8x+24

area of vanessa's patio = length × width

given, length = (3x² + 5x + 10)

width = (x² - 3x - 1)

area of vanessa's patio = (3x² + 5x + 10)(x² - 3x - 1)

= 3x²(x² - 3x - 1) + 5x(x² - 3x - 1) + 10(x² - 3x - 1)

= 3x⁴ - 9x³ - 3x² + 5x³ - 15x² - 5x + 10x² - 30x - 10

= 3x⁴ - 4x³ - 8x² - 35x - 10

hence, expression of vanessa's patio = (3x⁴ - 4x³ - 8x² - 35x - 10)