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gizmo_the_mogwai [7]
4 years ago
7

Solving equation r^2+5r=-4

Mathematics
1 answer:
shusha [124]4 years ago
3 0

r^2+5r=-4\\\\r^2+5r+4=0\\\\r^2+r+4r+4=0\\\\r(r+1)+4(r+1)=0\\\\(r+4)(r+1)=0\\\\r=-4 \vee r=-1

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aliina [53]

Answer:

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Step-by-step explanation:

Cost of Collins car insurance per year = £766.45

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Cost of the insurance now = £766.45 + 5.4% of £766.45

= 766.45 + 5.4/100(766.45)

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3 years ago
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den301095 [7]
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Step-by-step explanation:

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