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Factor the polynomial: r^2 + 6r + 8

Sagot :

Mlcparra16viz
We just need to look for two numbers with a product of 8 and a sum of 6, so we look at the factors of 8,
1 + 8 = 9 X
2 + 4 = 6 √

So we have:
r²+6r+8 = (r+2)(r+4)