PLEASE HELP. 20 POINTS. Write key ideas or a short summary about algebraic notation.

In Algebra we work with Variable, Symbols or Letters whose value is unknown to us.

Algebraic Expression

In the above expression (i.e. 5x – 3),

x is a variable, whose value is unknown to us which can take any value.

5 is known as the coefficient of x, as it is a constant value used with the variable term and is well defined.

3 is the constant value term which has a definite value.

The whole expression is known to be the Binomial term, as it has two unlikely terms.

hi

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)