(-11x^2 + 1.4x - 3) + (4x^2 - 2.7x + 8)

Question

asked Jan 10, 2023 164k views

1 Answer

Bmck · Answer 1 · 2023-01-15T04:18:34+0000

$\underline{\boxed{\sf{-7x^2 - (13)/(10) x +5}}}$

$\sf{(-11x^2 + 1.4x - 3) + (4x^2 - 2.7x + 8)}$

Remove the parentheses:

$\sf{-11x^2 + 1.4x - 3 + 4x^2 - 2.7x + 8}$

Convert decimal to fraction:

$\sf{-11x^2 + (14)/(10) x - 3 + 4x^2 - (27)/(10) x + 8}$

Reduce fraction to the lowest term by canceling the greatest common factor:

$\sf{-11x^2 + (7)/(5) x - 3 + 4x^2 - (27)/(10)x + 8}$

Combine like terms:

$\sf{-7x^2 - (13)/(10) x +5}$