Question

quadratic equations of x2-16=0 by using factorization method

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.

2−16=0

x^{2}-16=0x2−16=0

=1

a={\color{#c92786}{1}}a=1

=0

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

=−16

c={\color{#129eaf}{-16}}c=−16

=−0±02−4⋅1(−16)√2⋅1

x=\frac{-{\color{#e8710a}{0}} \pm \sqrt{{\color{#e8710a}{0}}^{2}-4 \cdot {\color{#c92786}{1}}({\color{#129eaf}{-16}})}}{2 \cdot {\color{#c92786}{1}}}x=2⋅1−0±02−4⋅1(−16)

2