Question

Describe the picture with the help of words given in the bracket.​

Answer 1

$\begin{gathered}:\implies\sf x^4 - 2x^3 + 3x^2 - ax + 8 = 10 \\\\\\\qquad \quad \quad \underline{\sf{Substituting \ the \ Value \ of \ x \ in \ given \ polynomial \ :}} \\\\\\:\implies\sf (2)^4 - 2(2)^3 + 3(2)^2 - a(2) + 8 = 10 \\\\\\:\implies\sf \cancel{16} - \cancel{16} + 12 - 2a + 8 = 10 \\\\\\:\implies\sf 20 - 2a = 10 \\\\\\:\implies\sf - 2a = 10 - 20 \\\\\\:\implies\sf 2a = 10\\\\\\:\implies\sf a = \cancel\dfrac{10}{2} \\\\\\:\implies\boxed{\frak{\purple{a = 5}}}\end{gathered}$

Answer 2

Explanation:

⟹x

4

−2x

3

+3x

2

−ax+8=10

Substituting the Value of x in given polynomial :

:⟹(2)

4

−2(2)

3

+3(2)

2

−a(2)+8=10

:⟹

16

−

16

+12−2a+8=10

:⟹20−2a=10

:⟹−2a=10−20

:⟹2a=10

:⟹a=

2

10

:⟹

a=5