Mathematics
BrainyRoo
2021-01-24 06:51:30
What is the first step in simplifying the expression? A.Square 4 B.Subtract 7 from 9 C.Add 3 and 4 D.Multiply 7 by 3
ANSWERS
Tiffany813
2021-01-24 10:11:52

(9 - 7 X 3 + 4 )² Always follow the rule BIDMAS Brackets Indices Division Multiplication Addition Subtraction First look at the Brackets There are no indices in the brackets There is no division in the brackets There is a Multiplication in the brackets    7 x 3 For the answer (9 - 7 x 3 + 4)² Brackets Multiplication   7 x 3 = 21 (9 - 21 + 4)² Addition   -21 + 4 = -17 (9 - 17)²  Subtraction    9 - 17 = -8 -8²  Now start again once the brackets are gone -8² Indices -8 x -8 = 64      

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