Which property justifies the statement below? a(2b+c)=a(c+2b)

a. commutative property of addition
b. commutative property of multiplication
c. associative property of addition
d. distributive property

Answer is in the photo. I couldn't attach it here, but uploaded it to a file hosting. link below! Good Luck!

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The answer is B

Step-by-step explanation:

It is B because in the parenthesis all the numbers do is switch around.

answer. d.289 hope that

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)