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Gnoma [55]
3 years ago
10

H²+10h=-21 solve quadratic trinomials

Mathematics
1 answer:
sladkih [1.3K]3 years ago
5 0
H²+10h+21 = 0
h²+3h+7h+21 = 0
h(h+3)+7(h+3) = 0
(h+3)(h+7) = 0

h+3=0
h = -3

h+7=0
h=-7
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