(5x+3)² = ? (3x-5)² = ?

(3a+2)² = ?

(x-2)² = ?

(x+2)² = ?

(3x+5)² = ???

(5x+3)² = ? (3x-5)² = ?

(3a+2)² = ?

(x-2)² = ?

(x+2)² = ?

(3x+5)² = ??? Essa é a pergunta que vamos responder e mostrar uma maneira simples de se lembrar dessa informação. Portanto, é essencial você conferir a matéria completamente.

(5x+3)² = ? (3x-5)² = ?

(3a+2)² = ?

(x-2)² = ?

(x+2)² = ?

(3x+5)² = ???

(5x+3)² = (5x +3).(5x +3) = 25x ² +15x +15x +9 = 25x² +30x +9 = 0 a = 25 b = 30 c = +9 Δ= b² -4.a.c Δ =(30)² -4.(25).(+9) Δ= 900 – 900 Δ= 0 x = -b ± √Δ 2.a x = -(+30) ± √0 2.25 x = -30 ± 0 50 x’= -30 +0 = -30 = ÷ 10 = -3 50 50 ÷ 10 5 x”= -30 -0 = -30 = -3 50 50 5 S{-3/5} (3x-5)² = (3x -5) . (3x -5) = 9x² -15x -15x +25 = 9x² -30x +25 =0 a = 9 b = -30 c = +25 Δ= b² -4.a.c Δ= (-30)² -4.(9).(+25) Δ= +900 – 900 Δ= 0 x = -b ± √Δ 2.a x = -(-30) ± √0 2.9 x = +30 ± 0 18 x’= +30 +0 = 30 = ÷ 6 = 5 18 18 ÷ 6 3 x”= 30 -0 = 30 = 5 18 18 3 S{5/3} (3a+2)² (3a +2) .(3a +2) 9a² +6a +6a +4 9a² +12a +4 = 0 a = 9 b = +12 c = +4 Δ= b² -4.a.c Δ=(12)² -4.(9).(+4) Δ= 144 – 144 Δ= 0 x = -b ± √Δ 2.a x = -(+12) ± √0 2.9 x = -12 ± 0 18 x’= – 12+0 = -12 = ÷ 6 = – 2 18 18 ÷ 6 3 x”= -12 -0 = -12 = -2 18 18 3 S{-2/3} (x-2)² = (x-2) .(x-2) = x² -2x -2x +4= x² -4x +4 =0 a = 1 b= -4 c = +4 Δ= b² -4.a.c Δ=(-4)² -4.(1).(+4) Δ= 16 -16 Δ= 0 x = -b ± √Δ 2.a x = -(-4) ± √0 2.1 x = +4 ± 0 2 x’= +4+0 = 4 = 2 2 2 x”= 4 -0 = 4 = 2 2 2 S{2} (x+2)² (x+2).(x+2) x² +2x +2x +4 x² +4x +4 =0 a = 1 b = +4 c = +4 Δ= b² -4.a.c Δ =(4)² -4.(1).(+4) Δ= 16 -16 Δ = 0 x = -b ± √Δ 2.a x = -(+4) ± √0 2.1 x = -4 ± 0 2 x’= -4+0 = – 4 = -2 2 2 x”= – 4 -0 = -4 = -2 2 2 S{-2} (3x+5)² = (3x +5) . (3x +5)= 9x² +15x +15x +25= 9x² +30x +25 =0 a = 9 b = +30 c = +25 Δ= b² -4.a.c Δ =(+30)² -4.(9).(+25) Δ= 900 – 900 Δ= 0 x = -b ± √Δ 2.a x = -(+30) ± √0 2.9 x = -30 ± 0 18 x’= -30 +0 = – 30 = ÷ 6 = – 5 18 18 ÷ 6 3 x”= – 30 -0 = – 30 = – 5 18 18 3 S{-5/3}

(5x+3)² = ? (3x-5)² = ?(3a+2)² = ?(x-2)² = ?(x+2)² = ?(3x+5)² = ???