Here are six number cards -7, -5, -3,3,1,-1 arrange these cards into three pairs with the same total

The sum of all of the cards is -7 + (-5) + (-3) + 3 + 1 + (-1) = -12 which means that each pair must have a sum of -12 / 3 = -4. This means that the pairs are -7 and 3, -5 and 1, and -3 and -1.

-8

step-by-step explanation:

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)