(7x+2)(20-3x/4) = 140x + 40 - 21x²/4 - 3x/2 = -21/4 x² + 138 1/2 x + 40
this is one of those multiplications that doesn't make the result look any simpler...
<span>= 6x2 − 3 − 5x3 − 4x3 - 2x2 + 8
= </span>− 9x3+ 4x2 + 5
answer is <span>−9x3 + 4x2 + 5 (second choice)</span>
Answer:
2 i think
Step-by-step explanation:
The correct answer would be 128.
Answer:
1 and 4
Step-by-step explanation:
