Question

Write the expression 5x2–4–3x2 + 6x + 8 + 5x - 13 in its simplified form. Find its value
of 4x + x - 2x2 + x-1 when x= -1.
when x = -2
If x=1;y=2 ​

Answer 1

$\huge{\boxed{\mathfrak{answer}}}$

$5x²-4-3x² + 6x + 8 + 5x - 13 =$

$2x² - 9 + 11x$

$= 2* (-2)² - 9+ 11 * - 2$

$= 2*4-9-22$

$= 8-9-22$

$= - 23$

$\rightsquigarrow$The answer is - 23