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charle [14.2K]
3 years ago
10

Find the missing coefficient (4d—4)(3d—2)=12d^2+ []d+8

Mathematics
1 answer:
sergij07 [2.7K]3 years ago
8 0
<span>(4d-4)(3d-2)=12d^2 + []d + 8

Using FOIL method:
4d x 3d = 12d^2
4d x  -2 = -8d
-4 x 3d = -12d
-4 x -2 = 8

Adding common terms, we have:
-8d + -12d = -20 d

The missing coefficient is -20.</span>
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Answer:

  (b) √65

Step-by-step explanation:

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proportion method

30/100=x/4.5
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cross multiply or ties both sides by 10*4.5
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First we must simplify the expression:
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Then we factor the rational parts and cancel it out:
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