Q&A for How to Use a Scientific Calculator For Algebra

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How do I make 7/3 on a calculator?

Community Answer

Fractions mean division. Type in 7÷3.

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How do I calculate 2 to the 64th power?

Community Answer

Press the "2" button, then the "xʸ" (the y is above the x on a calculator) button. Then type in "64".

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How do I do brackets on the calculator?

Community Answer

You can't, but I'm sure parentheses will work fine in place of square/curly brackets. Brackets are used by some people because the expression has groups in groups (e.g. 1+[4(2+1)+3]).

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How can I make the parenthesis with my scientific calculator?

Christopher

Top Answerer

If your scientific calculator has them (and most of them do), press each parenthetical in the order you want it to be used. The calculator will base it's answer on the order of operations where the stuff inside the parenthesis would be evaluated first, if placed inside the parenthesis correctly. If you try to place the ending parenthesis before the starting parenthesis, the calculator should give you an error - making sure that you start again with the correct sign. Each scientific calculator has the parentheticals in a different spot, but your owner's manual should tell you where to find them.

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Question

How do I do x on a scientific calculator when doing an algebra problem?

Community Answer

When doing an equation that specifies an unknown as X, usually when you go to enter the equation as a posed question the calculator knows that you are going to use the X as the designation for an unknown amount, and reads it like all the other letters. See your instruction book where the topic is equations.

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How can I use a calculator to solve a math question?

Community Answer

You probably have to figure out the formula first, if it's not already written down for you. Then, you just replace the formula with numbers and type it into the calculator.

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How do I use my calculator to solve a variable equation? Like 5x = 25.

Donagan

Top Answerer

Part of the process would be mental: in this example you'd have to recognize that both sides of the equation must be divided by 5, and then you'd use the calculator to divide 25 by 5.

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How to do r2(3r+4)+6r(r-2)?

Donagan

Top Answerer

First perform the indicated multiplications: (3r³ + 4r²) + (6r² - 12r). Now combine terms: 3r³ + 10r² - 12r. Finally, factor out an r: r(3r² + 10r - 12).

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How do you enter a math question that involves x on a TI-30XIIS?

I_l1ke_gam3s

Community Answer

You would need a calculator that allows you to enter variables. Most calculators don't have that feature.

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