Sagot :
A.)
[tex] {x}^{2} + 5x - 24[/tex]
Step-by-step explanation:
[tex](x - 3) + ( {x}^{2} + 4x - 21)[/tex]
COMBINE LIKE TERMS. LIKE TERMS ARE
[tex]x + 4x = 5x[/tex]
[tex] - 3 + ( - 21) = - 24[/tex]
WHEN ADDING NEGATIVE INTEGERS, JUST ADD THE TWO INTEGERS AND COPY THE NEGATIVE SIGN.
BRAINLIEST IN ACCORD TO YOUR SATISFACTION. COMMENT DOWN IF YOU HAVE ANY INQUIRIES.