dangelique6338 dangelique6338

09-09-2017
Mathematics

contestada

What value of c makes the trinomial below a perfect square x2 + 10x + c?

Respuesta :

ghanami ghanami

09-09-2017

hello :
x² + 10x + c
calculate the discriminant Δ = b²-4ac a = 1 b = 10 c = c
Δ = 10²-4c
the trinomial below a perfect square when : Δ = 0
10² -4c = 0
4c = 10²
c= 25
x²+10x+25 = x² +2(5)x+5² = (x+5)²

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alisonjamiemerritt alisonjamiemerritt

17-11-2020

Answer:

25

Step-by-step explanation:

a-p-e-x approved

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