<span>Part A: First, we factor out a^2 to obtain: a^2 [5x^2 - 19x - 4] = a^2[(5x+1)(x-4)]
Part B: By inspection, we can use the factors (x+7)(x+7). To check that we have indeed chosen correctly, we will multiply our factors to obtain x^2 + 7x + 7x + 49 =
x^2 + 14x + 49 = 0, which is correct.
Part C: Again, we can use trial and error and try the factors (x+10)(x-10). Multiplying throughout, we obtain x^2 + 10x - 10x - 100 = x^2 -100.</span>
Answer:
b to claim territory along the coast
Switzerland was not a member of the Allied forced during World War I. They instead managed to remain a neutral power. They were neutral during World War II as well.
The correct answer is Homo Erectus: Homo erectus travelled our of Africa around 1.8 million years ago. Homo sapiens did this only around 130 000 years ago and the Neanderthals were never in Africa as far as we know.
A shogun is a Japanese Emporer
