Expand Algebraic Expressions

(a-3)²

• a²-6a+9

• a²-6a-9

• a²+9

• a²-9

2(a+b)

• 2a+b

• 2a+2b

• a+b

• a-b

3(2x-5y)

• 6x-5y

• 6x+5y

• 6x-15y

• 6x+15y

3x(2 – x)

• 3x-x²

• 6x-3x

• 6x-3x²

• 6x²-3x

(m+n)(m-n)

• m²+n²

• m²-n²

• 2m+2n

• 2m-2n

(m-2)²

• m²-4

• m²+4

• m²-4m-4

• m²-4m+4

Which expression is equivalent to -5(x + 10)?

• 5x + 50

• -5x + 10

• -5x - 50

• 5x - 50

John's answer to the question below was 12h + 3. What were John's errors? Expand and simplify the expression below: 6h (2h + 3)

• He did not add the powers for the variable h.

• He did not multiply 6h x 3

• He did not use the distributive law correctly

• All of the above

Expand and simplify the expression
 2(r + 8) + 5(r + 2).            

• 7r -26

• 2r + 16 + 5r +10

• 7r + 16

• 7r + 26