Home › Forums › Math › If f(x) = 8 – 10x and g(x) = 5x + 4, what is the value of (fg)(–2)? › Reply To: If f(x) = 8 – 10x and g(x) = 5x + 4, what is the value of (fg)(–2)?
Answer : Option 2) -168
Explanation :
=> (fg)(−2) = f(−2)×g(−2).
=> f(−2) = 8−10(−2) = 8+20 = 28
=> g(−2) = 5(−2)+4 = −10+4 = −6
Then, (fg)(−2) = 28×−6 = −168
ProtonsTalk.