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charle [14.2K]
3 years ago
10

Are 2(x-5) and 2x-5 equivalent

Mathematics
2 answers:
Mandarinka [93]3 years ago
7 0
No, because with the parentheses, you distribute the 2 to both the x and the 5, making that equation 2x-10
krek1111 [17]3 years ago
7 0
No, 2(x-5)=2x-10 not 2x-5
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Answer:

4 {n}^{5}  + 3.5 {n}^{5}  + ( - 2.1 {n}^{5} )

first create a bracket:

= ( {4n}^{5}  + 3.5 {n}^{5} ) + ( - 2.1 {n}^{5} )

then solve the first bracket:

=  {7.5 {n}^{5} } + ( - 2.1 {n}^{5} )

then open the remaining bracket:

=  {7.5n}^{5}  -  {2.1n}^{5}

carryout the subtraction operation:

= (7.5 - 2.1) {n}^{5}  \\ { \boxed{ =  {5.4n}^{5} }}

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