Question
Write the coefficients and terms of the algebraic expression 10x2−5x−6. Also, find the value of the expression at x=2. [2 MARKS]
Answer:
:
Coefficients and terms: 0.5 Mark each
Value of the expression: 1 Mark
Coefficients of x2and x are 10 and - 5 respectively
Terms are 10x2, −5x and −6
We have to find the value of the expression at x=2 is
10×2×2−5×2−6
= 40−10−6
= 24
Hence, the value of the expression at x=2is24
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:
Coefficients and terms: 0.5 Mark each
Value of the expression: 1 Mark
Coefficients of x2and x are 10 and - 5 respectively
Terms are 10x2, −5x and −6
We have to find the value of the expression at x=2 is
10×2×2−5×2−6
= 40−10−6
= 24
Hence, the value of the expression at x=2is24
Was this answer helpful ?
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