s23373 s23373
  • 02-05-2022
  • Mathematics
contestada

Which is zero of the polynomial expression 7x+21

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mauverandol mauverandol
  • 02-05-2022
The expression will have a zero when it’s equation is equal to zero:

7x+21=0

Now solve for x, start by isolating the variable (x) by subtracting 21 from both sides

7x = -21

The only thing stopping c from being by itself is 7, so we divide both sides by 7 to isolate x

x = -3
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