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Sagot :
Answer:
28
Step-by-step explanation:
x(y + z - 3^2)
Let x=4 y=9 and z = 7
4(9 + 7 - 3^2)
Parentheses first
Exponents in the parentheses
4(9 + 7 - 9)
Add the terms in the parentheses
4(7)
Multiply
28
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