A = 1/2[198]

parentheses. There are no symbols between a and the

first parenthesis. This means that a must be multiplied

A= [99]

by the sum of *e *+ *d, *which results in a product of 140.

After substituting numerical values for the letter

Next multiply *bd *and *ce. *This results in products of 18

symbols, add *e *+ *d, *since they are enclosed within

and 40. When these products are added to 140, you

14-21

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