Question

please help question no. 2 only
math ​

Answer 1

$\bold{t² – 15}$

• Factorize the equation

$\tt \: t² – 15 = 0$

• Add 15 both side we get

$\tt \: t² = 15$

• Take square root both side

$\tt \: t= ± √15$

$\sf \: First \: zero \: is \: √15 \\ \sf \: second \: zero \: is - √15\\ \sf \: Sum \: of \: zero \: √15 - √15 = 0\\ \sf \: Product \: of \: zero \: √15 x -√15 = -15$

• Compare the equation with $\bold{at² + bt +c = 0}$ where a = 1, b = 0, c = -15

$\bold{ \: Sum \: of \: zero \frac{ - b}{a} } \sf \: = -(0 \div 1) = 0 \\ \\ \bold{Product \: of \: zero = \frac{c}{a} } \sf \: = -15/1 = -15$

$\bold \red{Celestial} \bold{Centrix}$

More information:

$\bold{ \: Sum \: of \: zero = \frac{ - b}{a} } \\ \\ \bold{Product \: of \: zero = \frac{c}{a} }$

Answer 2

Answer:

t²–15

Factorize the equation

\tt \: t² – 15 = 0t²–15=0

Add 15 both side we get

\tt \: t² = 15t²=15

Take square root both side

\tt \: t= ± √15t=±√15

\begin{gathered} \sf \: First \: zero \: is \: √15 \\ \sf \: second \: zero \: is - √15\\ \sf \: Sum \: of \: zero \: √15 - √15 = 0\\ \sf \: Product \: of \: zero \: √15 x -√15 = -15\end{gathered}

Firstzerois√15

secondzerois−√15

Sumofzero√15−√15=0

Productofzero√15x−√15=−15

Compare the equation with \bold{at² + bt +c = 0}at²+bt+c=0 where a = 1, b = 0, c = -15

\begin{gathered} \bold{ \: Sum \: of \: zero \frac{ - b}{a} } \sf \: = -(0 \div 1) = 0 \\ \\ \bold{Product \: of \: zero = \frac{c}{a} } \sf \: = -15/1 = -15\end{gathered}

Sumofzero

a

−b

=−(0÷1)=0

Productofzero=

a

c

=−15/1=−15