Can someone please answer this question please answer it correctly and please show work please help me I need it

2

Step-by-step explanation:

a + (-b)

4 + (-2)

2

If this answer is correct, please make me Brainliest!

2

Step-by-step explanation:

Write out the equation.

Plug in the values.

Solve

Note: Is the same as -2

Note: Is the same as

~Hope this helps!~

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)