+820 Fill in the blanks with numbers to make a true equation.
3x^2 + 12x - 4 - 2x^2 + 6x + 7 = ___ (x + ___ )^2 + ___
+1790 Let's first combine all like terms. We get
\(x^{2}+18x+3\)
Now, completing the square,we get \((x+9)^2-78\)
So the first blank is 1
The second blank is 9
The third blank -78
Thanks! :)
