Question

simplify: ( 5x‐7 ) (2x+3) (7x‐8)​

Answer 1

Answer:

5x(2x+3)-7(2x+3)(7x-8)

10 x square+15x-14x-21(7x-8)

10 x square+x-21) (7x-8)

Step-by-step explanation:

u can simplify like this

Answer 2

$\huge\fbox{\underline\purple{Answer}}$

$\bold\green{Simplify~:}$

$(5x - 7)(2x + 3)(7x - 8)$

$\large\underline\red{Solution~:}$

$:⟹[(5x - 7)(2x + 3)](7x - 8)$

$\begin{gathered}\begin{gathered}\: \: \: \: \: \: \begin{gathered}\begin{gathered} \footnotesize{\boxed{ \begin{array}{cc}{\blue {First~multiply~the~terms~of~the~first~two~brackets.}}\end{array} }}\end{gathered}\end{gathered}\end{gathered} \end{gathered}$

$:⟹[5x(2x + 3)-7(2x + 3)](7x - 8)$

$:⟹(10x² + x - 21)(7x - 8)$

$\begin{gathered}\begin{gathered}\: \: \: \: \: \: \begin{gathered}\begin{gathered} \footnotesize{\boxed{ \begin{array}{cc}{\blue{ Now~multiply~the~product~of~the~first~two~brackets~and~those~of~the~third~bracket}}\end{array} }}\end{gathered}\end{gathered}\end{gathered} \end{gathered}$

$⟹7x(10x²+x-21)-8(10x²+x -21)$

$⟹70x³+7x²-147x-80x²-8x+168)$

$⟹70x³+7x²-80x²-147x-8x+168)$

$\begin{gathered}\begin{gathered}\: \: \: \: \: \: \begin{gathered}\begin{gathered} \footnotesize{\boxed{ \begin{array}{cc} {\blue{Combine~like~terms }}\end{array} }}\end{gathered}\end{gathered}\end{gathered} \end{gathered}$

$:⟹70x³ - 73x² - 155x + 168)$$\underline\orange{Answer}$