Question

Find the value of “x” in the polynomial 2a2 + 2xa + 5a + 10 if (a + x) is one of its factors.​

Answer 1

Step-by-step explanation:

Solution:

Say, f(a) = 2a2 + 2xa + 5a + 10

Since, (a + x) is a factor of 2a2 + 2xa + 5a + 10, f(-x) = 0

So, f(-x) = 2x2 – 2x2 – 5x + 10 = 0

Or, -5x + 10 = 0

Thus, x = 2

Answer 2

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Heat is the form of energy that is transferred between systems or objects with different temperatures (flowing from the high-temperature system to the low-temperature system). Also referred to as heat energy or thermal energy.

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