Question

(2x+5)²=5²+12²=0 como q faço​

Answer 1

(2x+5)²=5²+12²

(2x+5)²=25+144

(2x+5)²=169

(2x+5) = √169

(2x+5) = ±13

2x+5 = -13 ==> x' = -13-5/2 = -9 ✓

2x+5 = +13 => x" = 13-5/2 = 4 ✓