Question 51067
1. 10+6(2-14)- - (5)= 10 + 6(-12) + 5 = 10 + (-72) + 5 = -62 + 5 = -57

2. 5+{{{2^4}}} + -10(2) third power -.5= "I'm not clear with this question"

3. (x+2)(x-3)={{{x^2+2x-3x-6}}}={{{x^2-x-6}}}

4  {{{(2x-1)^2}}} ={{{(2x)^2-2*2x*1+1^2}}}={{{4x^2-4x+1}}}