jaleesa31
jaleesa31 jaleesa31
  • 01-02-2022
  • Mathematics
contestada

x²+2x-15=0



Solving quadratic equations using factorising





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Respuesta :

amandaissa amandaissa
  • 01-02-2022
Answer: (x+5)(x-3)

Explanation:

Write 2x as a difference so (that also =15) so 5x-3x

That end up being x^2+5x-3x-15 now putting into factorisation (x+5)(x-3)

Hope this helps:)
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