Question

Factorise : 3x^2-17=0​

Answer 1

Answer:

Use the quadratic formula

=

−

±

2

−

4

√

2

x=\frac{-{\color{#e8710a}{b}} \pm \sqrt{{\color{#e8710a}{b}}^{2}-4{\color{#c92786}{a}}{\color{#129eaf}{c}}}}{2{\color{#c92786}{a}}}

x=2a−b±b2−4ac

Once in standard form, identify a, b and c from the original equation and plug them into the quadratic formula.

3

2

−

1

7

=

0

3x^{2}-17=0

3x2−17=0

=

3

a={\color{#c92786}{3}}

a=3

=

0

b={\color{#e8710a}{0}}

b=0

=

−

1

7

c={\color{#129eaf}{-17}}

c=−17

=

−

0

±

0

2

−

4

⋅

3

(

−

1

7

)

√

2

⋅

3

x=\frac{-{\color{#e8710a}{0}} \pm \sqrt{{\color{#e8710a}{0}}^{2}-4 \cdot {\color{#c92786}{3}}({\color{#129eaf}{-17}})}}{2 \cdot {\color{#c92786}{3}}}

x=2⋅3−0±02−4⋅3(−17)

2

Answer 2

hi.. here is ur answer... hope it will help