3 years ago

What is the solution of sqrt 1-3x =x+3

Mathematics

1 answer:

Sonbull [250]3 years ago

8 0

Answer:

x= -1

Step-by-step explanation:

1-3x=x²+6x+9

1-3x-x²-6x-9=0

-8-9x-x²=0

x²+9x+8=0

x²+8x+x+8=0

(x+8)(x+1)=0

x+8=0

x+1=0

sqrt 1-3(-8)=-8+3

sqrt 1-3(-1)=-1+3

5=-5

2=2

x≠8

x=-1

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