Question

If x = – 2, find the value of :4x²–3x +5


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Answer 1

4x^2-3x+5

(Putting value of x)

4(-2)^2-3(-2)+5

4×4+6+5

16+6+5

27

Answer 2

Answer:

Value of given expression, $4x^{2} -3x + 5$ is $27$.

Step-by-step explanation:

To find : value of given expression, $4x^{2} -3x + 5$

Given : $x= -2$  

Solution :

• According to question we have find the value of given expression $4x^{2} -3x + 5$  by substituting the given value of $x$ .
• Therefore on substituting the values and performing operations such as ,  addition and subtraction .

        $4x^{2} -3x + 5\\\\ = 4 (-2)^{2} -3 (-2 )+ 5\\\\=16 +6 + 5\\\\= 27$