Question

*If x = -3 then find the value of polynomial x² + 5x - 10.*

1️⃣ -16
2️⃣ 16
3️⃣ 14
4️⃣ -14

Answer 1

Answer:

-16 option (A)

Step-by-step explanation:

=>(-3)²+5(-3)-10

=>9-15-10

=>9-25

=>-16

Answer 2

Question :- If x = -3 then find the value of polynomial x² + 5x - 10.*

1) -16

2) 16

3) 14

4) -14

Solution :-

putting value of x = (-3) in f(x) we get,

→ f(x) = x² + 5x - 10

→ f(-3) = (-3)² + 5 * (-3) - 10

→ f(-3) = 9 - 15 - 10

→ f(-3) = 9 - 25

→ f(-3) = (-16) (option 1) (Ans.)

Hence, at x = (-3) value of f(x) is (-16).

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if a^2+ab+b^2=25

b^2+bc+c^2=49

c^2+ca+a^2=64

Then, find the value of

(a+b+c)² - 100 = ...

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