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BigorU [14]
3 years ago
7

Help math is not my subject

Mathematics
2 answers:
Mashutka [201]3 years ago
6 0
First you would do 3-9 which is -6 then -4-1 which is -5 then since the parenthesis are close to each other you would multiply and you should get

30 
Pepsi [2]3 years ago
6 0
(3 - 9)(-4 - 1)

Order of operations =  PEMDAS
P = Parentheses 
E = Exponents 
M = Multiplication 
D = Division
A = Addition
S = Subtraction 

(3 - 9)(-4 - 1)
(-6)(-4 - 1)
(-6)(-5)
30

(3-9)(-4 - 1) = 30
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Determine dois números ímpares consecutivo cujo produto seja 195
miv72 [106K]
Let 1st integer  = xLet 2nd integer = x + 1 We set up an equation. x(x + 1) = 195 x2 + x = 195 x2 + x - 195 = 0

We will use the quadratic formula: x = (-b ± √(b2 - 4ac) / (2a) x = (-1 ± √(1 - 4(-195))) / 2 x = (-1 ± √(781)) / 2 x = (-1 ± 27.95) / 2 x = 13.48x = -14.78 
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