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how to solve (t-5)(t+5)​

Sagot :

Woodlenkittyidn

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→t2 - 25←

[tex]Secrecy Woodlenkitty[/tex]

RainyReverieidn

The answer is [tex]\sf t^{2} -25[/tex].

We're asked to simplify the expression [tex]\sf (t-5)(t+5)[/tex].

We'll use FOIL to simplify.

FOIL stands for:

  • first
  • outside
  • inside
  • last

Multiply the first terms:

[tex]\sf t\times t=t^2[/tex]

Multiply the outside terms:

[tex]\sf t\times5=5t[/tex]

Multiply the inside terms:

[tex]\sf -5\times t=-5t[/tex]

Multiply the last terms:

[tex]\sf -5*5=-25[/tex]

We get:

[tex]\sf t^2-5t+5t-25[/tex]

Simplify:

[tex]\sf t^2-25[/tex]