Question

Помогите плиизз 1. (8х+3)= 2. (7а²+2а)-(4а²-3а)= заранеее спасибо

Answer 1

$8x + 3 = 2 \ 8x = 2 - 3 \ 8x = - 1 \ x = - 1 div 8 \ x = - frac{1}{8} \ x = 0.125$



$(7 {a}^{2} + 2a) - (4 {a}^{2} - 3a) = \ = 7 {a}^{2} + 2a - 4 {a}^{2} + 3a = 3 {a }^{2} + 5a$