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sweet-ann [11.9K]
3 years ago
13

Factor -1.8 out of 3.6b-9

Mathematics
1 answer:
Fofino [41]3 years ago
7 0
<h3>Answer:   -1.8(-2b+5)</h3>

=================================================

Explanation:

Consider something like 2b+6 factoring to 2(b+3). When we distribute that outer 2 back inside the parenthesis, we're multiplying that 2 by everything inside. Factoring goes in reverse of this and we divide each term of 2b+6 by the GCF 2.

The same thing applies to this current problem as well.

Divide each term by the -1.8 we want to factor out.

  • (3.6b)/(-1.8) = -2b
  • (-9)/(-1.8) = 5

The results -2b and 5 will go inside the parenthesis. That's how we end up with -1.8(-2b+5)

You can use distribution to verify this

-1.8(-2b+5)

-1.8*(-2b) - 1.8*(5)

3.6b - 9

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