Question

Use proper identity to simplify (x – 1 ) ( x + 4 ).

Answer 1

HEYA MATE

HERE IS YOUR ANSWER:

$x^{2}$ - 4

Step-by-step explanation:

($x$-1) ($x$+4)

$x$($x$+4) - 1($x$+4)

$x^{2}$ + 4$x$ - $x$ - 4

$x^{2}$ +  3$x$ -  4

HOPE IT HELPS

MARK AS BRAINLIEST