23 - (-14) = 23 + 14 = <em><u>37</u></em>
128 - (-105) = 128 + 105 = <em><u>233</u></em>
Answer: -(x+8)(x-8)
Step-by-step explanation:
-(x^2-64)
x^2-8^2x^2
x^2-8^2=(x+8)(x-8)
-(x+8)(x-8)