<span>The answer is: 1, 2, 7, 14 .
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Explanation:
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FIrst, list all the factors of 42 (positive integers):
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1, 42
2, 21,
3, 14,
6, 7
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Then list all the factors of 28 (positive integers):
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<span> 1, 28
2, 14,
4, 7
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Now, list all numbers that occur for BOTH the factors of "28" AND the factors of "42"
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1, 2, 7, 14
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The answer is: 1, 2, 7, 14 .
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Second bubble reasoning a^3-4a^3=-3a^3
-2a^2+3a^2=a^2 hope this helps
Solution
36x - 8y2 = 37 • 3 - 8 • (-6)2
= 108 - 8• 36
= -180
Assuming the exponent is supposed to be "^2" your equation will read:
4x² + 8x - 5
It must set equal to y to be a valid function and the y must be set equal to zero to find x-intercepts.
4x² + 8x - 5 = 0
4x² - 2x + 10x - 5 = 0
2x(2x - 1) + 5(2x - 1) = 0
(2x + 5)(2x - 1) = 0
Set each binomial equal to zero.
2x + 5 = 0
2x = 0 - 5
2x = - 5
Divide both sides by 2
x = - 5/2
2x - 1 = 0
2x = 0 + 1
2x = 1
x = 1/2
Your x-intercepts are x = - 5/2, 1/2 or (- 5/2, 0) and (1/2, 0)
Answer and working out attached below. Hope it helps