Which expression is equivalent to 2x−4+4(3x−2)2x−4+4(3x−2) ?

a) 4(5x−2)4(5x−2)

b) 14x−614x−6

c) 2(7x−6)2(7x−6)

d) 8x(3x−6)

Simplify the expression. -2/5(10+15m-20n)

What is 1.5% of 120 or what number is 1.5% of 120

Astudent was asked to find the square of 7x+3. the student quickly wrote (7x+3)^3= 49x^2+9. identify the student's error and provide the correct answer.