Question

If a= 1/2 b= 3 and c= 1 then find the value of b2-4ac

Answer 1

Answer:

a=½

b=3

c=1

Then D = b² - 4ac

= 3² - 4 × ½ × 1

= 9 - 2

= 7 Ans.

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Answer 2

Final Answer:

When the values of a= 1/2, b= 3 and c= 1; the correct value of the expression $b^2-4ac$ is 7.

Given:

The values are provided as a= 1/2, b= 3 and c= 1

To Find:

The value of the expression $b^2-4ac$ is to be calculated using the given values of a= 1/2, b= 3 and c= 1

Explanation:

The following are needed for solving this problem.

• An algebraic expression can have any number of algebraic variables, the coefficients and constants.
• On putting the assigned values of the variables, an expression can be evaluated.

Step 1 of 2

Put the provided values of a= 1/2, b= 3 and c= 1 in the expression in the following way.

$b^2-4ac\\=3 ^2-4\times\frac{1}{2} \times 1$

Step 2 of 2

Simplify the above in the following way.

$3 ^2-4\times\frac{1}{2} \times 1\\=9 -2\\=7$

Therefore, the required answer is $b^2-4ac=7$ for the stated values of a, b and c.

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