Question

find the value of polynomial 8x³-6x²+2 at x=1​

Answer 1

Answer:

the answer will be 4

Step-by-step explanation:

8x3-6x^2+2 = 8(1)^3 - 6(1)^2 + 2

= 8 - 6 + 2

= 10 - 6

= 4

?ℍ

Answer 2

• The value of polynomial 8x³ - 6x² + 2 at x = 1 is equal to 4 .

To Find :- The value of polynomial 8x³ - 6x² + 2 at x = 1 ?

Solution :-

given that,

→ p(x) = 8x³ - 6x² + 2

putting x = 1 we get,

→ p(1) = 8(1)³ - 6(1)² + 2

→ p(1) = 8 × 1 - 6 × 1 + 2

→ p(1) = 8 - 6 + 2

→ p(1) = 10 - 6

→ p(1) = 4 (Ans.)

Hen the value of the given polynomial at x = 1 is equal to 4 .

Extra knowledge :- If A•x² + B•x + C = 0, is any quadratic equation, then its discriminant is given by :-

• D = B^2 - 4•A•C

• If D = 0 , then the given quadratic equation has real and equal roots.

• If D > 0 , then the given quadratic equation has real and distinct roots.

• If D < 0 , then the given quadratic equation has unreal (imaginary) roots.

Learn more :-

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