Question

Спростить вираз (3х+4)²+(5+3х)(5-3х)

Answer 1

${(3x + 4)}^{2} + (5 + 3x)(5 - 3x) = 9 {x}^{2} + 24x + 16 + 25 - {9x}^{2} = 24x + 41$