10b + b^2 = 551 znajdź b. tylko prosze z rozwiązaniem zebym wiedziala skad to : )
10b + b^2 = 551
b^2+10b-551=0
Δ=b^2-4ac
Δ=10^2+4*551
Δ=100+2204
Δ=2304
√Δ=48
b1=(-b+√Δ)/2a
b1=(-10+48)/2=38/2=19
b2=(-b-√Δ)/2a=(-10-48)/2=-58/2=-29
b1=19 b2=-29
b² + 10b - 551 = 0
a = 1 b = 10 c = - 551
Δ = b² - 4ac = 10² - 4 * 1 * (-551) = 100 + 2204 = 2304
√Δ = 48
b1 = (-b + √Δ) / 2a = (-10 + 48) / 2 = 38 / 2 =19
b2 = (-b - √Δ) / 2a = (-10 - 48) / 2 = -58 / 2 = -29
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10b + b^2 = 551
b^2+10b-551=0
Δ=b^2-4ac
Δ=10^2+4*551
Δ=100+2204
Δ=2304
√Δ=48
b1=(-b+√Δ)/2a
b1=(-10+48)/2=38/2=19
b2=(-b-√Δ)/2a=(-10-48)/2=-58/2=-29
b1=19 b2=-29
10b + b^2 = 551
b² + 10b - 551 = 0
a = 1 b = 10 c = - 551
Δ = b² - 4ac = 10² - 4 * 1 * (-551) = 100 + 2204 = 2304
√Δ = 48
b1 = (-b + √Δ) / 2a = (-10 + 48) / 2 = 38 / 2 =19
b2 = (-b - √Δ) / 2a = (-10 - 48) / 2 = -58 / 2 = -29