If the satellite signal equation is (3x - 4)², what is the expanded expression?
Show answer & explanation
Correct answer: B
Explanation
given :
(3x − 4)²
According to the formula:
(a − b)² = a² − 2ab + b²
(3x − 4)²= (3x)² − 2(3x)(4) + 4²
= 9x² − 24x + 16