Which expression is equivalent to 3+2(x+4)(x-4) a. 2x^2 - 13
b. 2x^2 -29
c. 2x^2 -35
d. 5x^2 -80

Hi my sisters and brothers can tell me the answer because i don’t understand the question

Evaluate the expression for the given value of the variable. ∣-4b-8∣+∣-1-b^2 ∣+2b^3 ; b=-2

Worth 100 points need the answers asap first row -x^2 2x^2 (x/2)^2 x^2 x is less than 2 x is greater than 2 x is less than or equal to 2 x is greater than or equal to 2 second row -5 -5/2 4 5 •2 is less than x& x is less than 4 •2 is less than or equal to x & x is less than or equal to 4 •2 is less than or equal to x& x is less than 4 •2 is less than x& x is less than or equal to 4