Multiply the polynomials. (4x- + 4x + 6)(7x + 5)

Question

Multiply the polynomials.
(4x- + 4x + 6)(7x + 5)

in progress 0
RI SƠ 2 weeks 2021-08-30T01:20:01+00:00 1 Answers 0 views 0

Answers ( )

    0
    2021-08-30T01:21:47+00:00

    \implies {\blue {\boxed {\boxed {\purple {\sf {   \: 28 {x}^{3}  + 48 {x}^{2}  + 62x + 30}}}}}}

    \large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\red{:}}}}}

    (4 {x}^{2}  +  4x + 6)(7x + 5)

      = \: 7x(4 {x}^{2}  + 4x + 6) + 5(4 {x}^{2}  + 4x + 6)

     =  \: 28 {x}^{3}  + 28 {x}^{2}  + 42x + 20 {x}^{2}  + 20x + 30

    Combining like terms, we have

     =  \: 28 {x}^{3}  + (28 {x}^{2}  + 20 {x}^{2} ) + (42x + 20x) + 30

     =  \: 28 {x}^{3}  + 48 {x}^{2}  + 62x + 30

    \large\mathfrak{{\pmb{\underline{\orange{Mystique35 }}{\orange{❦}}}}}

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )