Question

x³-144 x =(x)²-(12x)² {Step 1} =(x-12x)(x-12x) {Step 2} =(x-12x)² {Step 3} Choose the correct statement based on the sum solved by a student.​

Answer 1

Step-by-step explanation:

1 ) We know : In linear equation power of variables is always " 1 " .

And for one variable equation we can have only one variable in the given query .

Now we find which of these are one variable linear equations from above two points , As :

I ) 5 x + 9 = 3 ,

5 x = - 6 , That is one variable linear equation .

II ) 5 x2 + 9 x = 5 , Here we have power of variable ' 2 ', So that not a even a linear equation .

III ) 5 x + 9 y = 0 , Here we have two variables , so that is not one variable linear equation .

IV ) 5 x + 4 + 6 x = 7 ,

11 x = 3 , That is one variable linear equation .

So,

Only (I) and (IV ) are one variable linear equation .