Question

solve (x+3)sq -7(x + 3) + 12 = 0​

Answer 1

(x+3)²-7(x+3) +12 =0

now"  we have to solve this .......

so aaply the  identity thaty is needed

x²+9-6x-7x-21+12 =0

x²-13x +9-9 =0

x²-13x=0

x²=13x

x=13

hope it will help you mark me as a brainlist