SOLUTION: 1.(5x+2)(5x-2)-(x+3)^2 my answer is (5x+2)(5x-2)=5x^2-2^2=25x-4 -(x+3)^2 = -x2+x*2*3+32= -
Question 523980: 1.(5x+2)(5x-2)-(x+3)^2 my answer is (5x+2)(5x-2)=5x^2-2^2=25x-4-(x+3)^2 = -x2+x*2*3+32= -x2+6x+9-x2+6x+9+25x-4=-x2+31x+5. 2.solving Y=2x+1 Y=3x-1 when i do that with the calculater i get diffrent result then when solve it with algebraic ....