What is the solution to this system of linear equations? 2x + y = 1
3x - y = -6
A. (-1,3)
B. (1,-1)
C. (2,3)
D. (5,0)

A. (-1 , 3)

Step-by-step explanation:

          2x + y = 1

plus    3x - y = -6

5x = -5

x = -1

y = 1 - (2*-1) = 3

3

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)