Question

3(x+5)^2 - 2(x+5)-8 please help

Answer 1

Answer:

Step-by-step explanation:

3(x+5)^2= (x^2+25+10x)3

             = 3x^2+75+3ox

2(x+5)-8= 2x+10-8 =2x+2

thus,3(x+5)^2-2(x+5)-8=3x^2+75+3ox-(2x+2)=3x^2+75+30x-2x-2=3x^2+73+28x