Factorise
10m² - 31m - 132
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Step-by-step explanation:
10m² - 31m - 132
-b +/- √b^2 -4ac/2a
31 +/- √ 961+5280/20
31 +/- 79/20
31+79 /20 or 31-79/20
110/20 or - 48/20
55/10 or -24/10
5.5 or -2.4
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