Find the missing factor x^2-7x-18=(x-9)
1 answer:
To factor the polynomial x² - 7x - 18, find two numbers whose sum is -7 and whose product is -18. Begin listing factors of -18, and those numbers' sums. -2 × 9 = -18; -2 + 9 = 7 -9 × 2 = -18; -9 + 2 = -7 The two numbers are -9 and 2. The factored polynomial is (x - 9)(x + 2)Answer : The missing factor is (x + 2)
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Suppose A = {1, 7, 13, 17, 21, 25} and B = {7, ,14, 21, 28, 35, 42}. What is A∩B?
Lubov Fominskaja [6]
Answer:
y=-0.5x+8
Step-by-step explanation:
Opposite reciprocal of 2: -0.5
6=-0.5*4+b
6=-2+b
b=8
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