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Find the value of 3x^2 if x=-1...

Find the value of `3x^2` if x=-1

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VGS PUBLICATION-BRILLIANT-LINEAR EQUATIONS IN ONE VARIABLE -EXERCISE
  1. Solve the following simple equations :4x-5/3=9

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  2. Solve the following simple equations :x+4/3=3"" 1/2

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  3. Find the value of 3x^2 if x=-1

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  4. Sum of two numbers is 29 and one number exceeds another by 5. Find the...

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  5. Four times a number reduced by 5 equals 19. Find the number.

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  6. The length of a rectangle shaped park exceeds its breadth by 17 meters...

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  7. Two supplementary angles differ by 34. Find the angles.

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  8. The present age of Vijay's mother is four times the present age of Vij...

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  9. There are 180 multiple choice questions in a test. A candidate gets 4 ...

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  10. Ravi works as a cashier in a bank. He has currency of denominations ₹1...

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  11. The difference between two numbers is 8. If 2 is added to the bigger n...

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  12. What are those two numbers whose sum is 58 and difference is 28?

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  13. The sum of two consecutive odd numbers is 56. Find the numbers.

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  14. The sum of three consecutive multiples of 7 is 777. Find these multipl...

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  15. A man walks 10 km, then travels a certain distance by train and then b...

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  16. Vinay bought a cake and cut it into three pleces. When he weighed the ...

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  17. The distance around a rectangular field is 400 metres. The length of t...

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  18. Length of a rectangle is 8 m less than twice its breadth. If the perim...

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  19. Two equal sides of a triangle are each 5 metres less than twice the th...

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  20. The larger of two supplementary angles exceeds the smaller by 12^@. Fi...

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