Question

resolva as equações produto​

Answer 1

Resposta:

a) (y+7)(y-3) = y²-3y+7y-21 = y²+4y-21

b) (4x-3)(x+5) = 4x²+20x-3x-15 = 4x²+17x-15

c) (3n+2)(4n+5) = 12n²+15n+8n+10 = 12n²+23n+10

d) (t-1)(t+5)(2t-1) = (t²+4t-5)(2t-1) = 2t³+7t²-14t+5