Which value must be added to the expression x2 + x to make it a perfect-square trinomial? One-fourth One-half 1 4
2 answers:
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One way to prove this is to use a 2 column table like so
The first two statements are literal word-for-word repeats of what your teacher mentioned. This is how every proof starts off. It seems silly to repeat things, but that's just how it is. The goal is to connect what you're given to what you want to prove.
We'll involve the reflexive property in statement 3 so that we can use ASA (angle side angle) in statement 4. Notice how statements 1 & 2 handle the "angle" part of ASA, while statement 3 handles the "side" of ASA. The sides mentioned are between the angles mentioned.