Question

25. The Marks obtained by Rahul in first four tests in Mathematics subjects are increased in Arithmetic Progression. If the sum of the marks obtained by him in second and fourth test is 22 and the product of marks got by him in first and fourth tests is 85, how many marks did Rahul scored in each test? ​

Answer 1

Answer:

dohj

Step-by-step explanation:

You combine like terms by variable(s) and exponent(s).

The variables and exponent must match in order to combine.

So take

x

2

+

x

. Variables (x and x) match, but exponents (2 and 1) do not, so you cannot combine

Take

x

2

+

y

2

. Exponents (2 and 2) match, but variables (x and y) do not.

Now, take

3

x

2

+

5

x

2

These CAN be combine since the variable of x and power of 2 match.

So we have

3

x

2

+

5

x

2

=

(

3

+

5

)

x

2

=

8

x

2

Answer 2

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