Numerical expressions are math problems containing only numbers and operational symbols. Solve by first completing any computations appearing inside parenthesis, working from left to right. Then compute exponents, working from left to right. Finally, complete the multiplication and division portions from left to right, followed by the remaining addition and subtraction portions.
Know MoreFind the value of any portions of the numerical expression that are located inside parenthesis. Compute these values by working from left to right inside the parenthesis, doing multiplication and division first and addition and subtraction second. For example, compute (2 + 4) x (15 - 6 x 2) by first simplifying 2 + 4 to get 6 x (15 - 6 x 2) and then computing 6 x 2 to get 6 x (15 - 12). Finish computing the portion in the parenthesis by doing the subtraction to get 6 x 3.
Compute the actual value of any number in the numerical expression that has an exponent. For example, convert 2^2 to 4.
Working from left to right, compute any multiplication and division found within the numerical expression. Using this method, the expression 4 x 6 + 2 x 4 becomes 24 + 8.
Finish the problem by completing the addition and subtraction, again working from left to right. This gives the solution to the numerical expression.
Find the square root by finding the number that, when multiplied by itself, gives you the root number. For root numbers that are not perfect squares, there is a separate process to finding the square root.
Full Answer >A good method for multiplying fractions with exponents is to factor, cancel and simplify. This works whether the exponent is attached to a variable or a numeral.
Full Answer >The square root of 252 is equal to 15.87. Written in simplified radical form, the square root of 252 is equal to 6 times the square root of 7.
Full Answer >The Maclaurin series for ln(1+x) is ln(1+x) = x - x^2/2 + x^3/3 - x^4/4 + x. This series gives an approximate value of ln(1+x) when x is between minus one and one. The more terms are included, the more accurate the value will be.
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