Beginning Algebra

how do i figure out this problem i have to make the equation true by inserting one or more parenthesis

a. 2 * 3^2 + 4 * 3 - 1 = 47


For this
a. 2 * 3^2 + 4 * 3 - 1 = 47
You need a fairly large number compared with the available numbers, so you might try grouping the 2 and 3 together before squaring them.

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