3 years ago

Can someone please help me!

Mathematics

1 answer:

german3 years ago

5 0

Answer:

Step-by-step explanation:

18. x can also become the negative integral square root of 9, which is -3.

$\sqrt{9}=-3,3$

19.

$2x-x=x\\2x=2x\\$

Here, as x is a variable, it can take any values. As its co-efficient (2) is same both in the RHS and LHS... the LHS=RHS, for any (Real) values of x

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