Respuesta:
PREGUNTA 8
[tex]5 {x}^{3} - 0.7 {x}^{4} + A{x}^{3} + B {x}^{4} \\ (B - 0.7) {x}^{4} + (A + 5) {x}^{3}[/tex]
[tex]B - 0.7 = 0 \\ B = 0.7[/tex]
[tex]A + 5 = 0 \\ A = - 5[/tex]
PREGUNTA 9
[tex]9 {x}^{5} - 3 {x}^{3} + A {x}^{3} - B {x}^{5} \\ (9 - B) {x}^{3} + (A - 3) {x}^{3} [/tex]
[tex]9 - B = 0 \\ 9 = B[/tex]
[tex]A - 3 = 0 \\ A = 3[/tex]
PREGUNTA 10
[tex]B - 7= 0 \\ B = 7[/tex]
[tex]A + B= 0 \\ A + 7 = 0 \\ A = - 7[/tex]
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Verified answer
Respuesta:
PREGUNTA 8
[tex]5 {x}^{3} - 0.7 {x}^{4} + A{x}^{3} + B {x}^{4} \\ (B - 0.7) {x}^{4} + (A + 5) {x}^{3}[/tex]
[tex]B - 0.7 = 0 \\ B = 0.7[/tex]
[tex]A + 5 = 0 \\ A = - 5[/tex]
PREGUNTA 9
[tex]9 {x}^{5} - 3 {x}^{3} + A {x}^{3} - B {x}^{5} \\ (9 - B) {x}^{3} + (A - 3) {x}^{3} [/tex]
[tex]9 - B = 0 \\ 9 = B[/tex]
[tex]A - 3 = 0 \\ A = 3[/tex]
PREGUNTA 10
[tex]B - 7= 0 \\ B = 7[/tex]
[tex]A + B= 0 \\ A + 7 = 0 \\ A = - 7[/tex]