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Substituting x=-3 in x^2+5x gives (-3)^2...

Substituting `x=-3` in `x^2+5x` gives `(-3)^2+5(-3)=-9-15=24`

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To solve the expression \( x^2 + 5x \) by substituting \( x = -3 \), we will follow these steps: ### Step 1: Write down the expression We start with the expression: \[ x^2 + 5x \] ...
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NCERT ENGLISH-FACTORISATION-EXERCISE 14.4
  1. Find and correct the errors in the mathematical statements. (3x+2)^2=...

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  2. Find and correct the errors in the following mathematical statements....

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  3. Find and correct the errors in the mathematical statements. 4(x-5)=4x-...

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  4. Find and correct the errors in the mathematical statements. x(3x + 2)...

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  5. Find and correct the errors in the mathematical statements. 2x + 3y =...

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  6. Find and correct the errors in the mathematical statements. x + 2x + ...

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  7. Find and correct the errors in the mathematical statements. 5y + 2y +...

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  8. Find and correct the errors in the mathematical statements. 3x + 2x =...

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  9. Find and correct the errors in the mathematical statements. (2x)^2 + 4...

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  10. Find and correct the errors in the following mathematical statements....

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  11. Find and correct the errors in the following mathematical statements....

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  12. Find and correct the errors in the following mathematical statements....

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  13. Find and correct the errors in the following mathematical statements....

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  14. Find and correct the errors in the following mathematical statements....

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  15. Find and correct the errors in the following mathematical statements....

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  16. Find and correct the errors in the following mathematical statements....

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  17. Substituting x=-3 in x^2+5x gives (-3)^2+5(-3)=-9-15=24

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  18. Find and correct the errors in the following mathematical statements....

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  19. 3/(4x + 3)=1/(4x)

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  20. solve for x (3x)/(3x+2) = 1/2

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