How do I solve -3x = 9
1 answer:
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There are 2 roots so the only way to complete the square is,
Just factor 2 out of 2x^2+8x (just ignore the -9) then find the number that will make the terms be able to complete the square.
then complete the square and multiply 2 inside the brackets.
subtraction as you already get the vertex form and know how to complete the square.
Vertex Form:
Step 1. <span>Distribute
</span>
<span>
Step 2. Simplify </span>
to 
Step 3. Simplify
to 
Done! :)
</span>
<span>
Step 2. Simplify </span>
Step 3. Simplify
Done! :)