Question

*If x = -2 then find the value of polynomial 4x + 5x² - 6.*

1️⃣ -6
2️⃣ 6
3️⃣ 8
4️⃣ 18​

Answer 1

Answer:

6

Step-by-step explanation:

X = - 2

Substituting it in the polynomial,

4(-2)+5(-2)²-6

-8+5(4)-6

-8+20-6

20-14

= 6

The value of polynomial is 6

Answer 2

Given :-

p(x) = 4x + 5x² - 6

To Find :-

Value of polynomial

Solution :-

By putting x = -2

p(x) = 4(-2) + 5(-2)² - 6

p(x) = -8 + 5(4) - 6

p(x) = -8 + 20 - 6

p(x) = -14 + 20

p(x) = 6

Option B is correct

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