Expanding brackets.., how to expand when asked to divide, multiply etc

how to expand when asked to divide, multiply etc

Charts, is (1,7),(2,7),(3,7),(5,7) a function

is (1,7),(2,7),(3,7),(5,7) a function

Algebra word problem, The weight of an object on Planet A and the weight of...

The weight of an object on Planet A and the weight of the same object on the Planet B are proportional. An astronaut who weighs 160 pounds on Planet A weighs 26.7 pounds on Planet

Boolean,

Circles, how do you find the equation of the line tangent to the circle: x...

how do you find the equation of the line tangent to the circle: x^2=y^2=89 (5,-8)

Solve the given log function, Example: Solve following equations. 2 log...

Example: Solve following equations. 2 log 9 (√x) - log 9 (6x -1) = 0 Solution  Along with this equation there are two logarithms only in the equation thus it's easy t

Math, math help

math help

Equations, solve the system of equations using the substitution method. y+5...

solve the system of equations using the substitution method. y+5x=10 -10x+3y=5

Missing Numbers in Equations, 3+n=11

3+n=11

Sigma notation expansion, How do you expand a sigma notation from x to x of...

How do you expand a sigma notation from x to x of a variable that is not defined in the index. For example, summation of i=1 to n of x?