Page 115 - Algebra

Exercise
1. Factorize x2 – 6√3x + 15
a) (x –√3) (x –5√3)
c) (x –√3) (x +5√3)
e) Cannot be determined
2. What are the factors of x4 + 64?
a)(x2 +8)2
c)(x2 +8–4x)(x2 +8+4x) e) Cannot be determined
3. What is the value of 3.92?
b) (x +√3) (x –5√3) d) (x+ √3) (x +5√3)
b)(x2 –8)2 d)(x–8)(x2 +8)2
b) 8.41 d) 12.91
b) – x4
d) x4– 32
b) 3 d) 9
a) 9.51 c) 10.31 e) 15.21
4. Simplify (x2 + 4) (x2
a) x4
c) x2– 16
– 4) + 16
e) x4– 16 411
5. If x +
4 = 119 , find the value of (x – ) 𝑥𝑥
a) 1 c) 4 e) 11
6. A daily wage electrician was paid $300 during a time frame of 30 days. During the 30-day’s time frame, he was absent for 6 days and was fined $5 per day. The electrician was paid the full salary only for 16 days because all the other days he was very late to work due to illness. On the days he came late, he was paid only half of the wages. Find the salary paid to an electrician who was never late nor absent from the work for 30 days?
a) $330 b) $385 c) $415 d) $495 e) $505
Page 114 of 177
Algebra I & II