## anonymous one year ago 1. what is the value of n so that the expression x^2+12x+n is a perfect square trinomial a.6 b.36 c.72 d.144 2. what are the solutions of the equation x^2+4x=96 a.2,-48 b.-12,8 c.-2,48 d12,-8

1. Loser66

Any idea?

2. anonymous

I think 1 is b and I have no idea on 2 @Loser66

3. Luigi0210

Yes, you would be right on 1, to get it to be a perfect square you take b and.. $$\Large (\frac{ b}{2})^2$$ For 2, set it equal to zero to solve.

4. anonymous

so it would be c

5. Luigi0210

c? Nope: x=-2, 48 $$(x+2)(x-48)=0$$ $$x^2-48x+2x-96$$ $$\Large =x^2-46x-96$$)