hollygoldsmith11 hollygoldsmith11
  • 10-11-2021
  • Mathematics
contestada

factorise first then solve these equations

1.

x^2+5x+4=0

2.

a^2+7a+12=0

Respuesta :

rachelg0536 rachelg0536
  • 10-11-2021
1) factorised is (x+4)(x+1)=0
So x=-4 x=-1

2) factorised is (a-4)(a-3)=0
So a=4 a=3
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