Simplify 2a2b3(4a2 + 3ab2 – ab) = ?
A8a4b3 + 6a3b5 + 2a3b4
B8a4b3 + 6a3b5 – 2a3b4
C8a4b5 + 3a3b5 + 2a3b4
D8a4b5 + 3a3b5 – 2a3b4
Find the value of x in the equation 2 x + 20 = 15 + 3 x .
A–5
B16
C25
D1
A8a4b3 + 6a3b5 + 2a3b4
B8a4b3 + 6a3b5 – 2a3b4
C8a4b5 + 3a3b5 + 2a3b4
D8a4b5 + 3a3b5 – 2a3b4
A–5
B16
C25
D1