Question

please answer fast . ❌ ​

Answer 1

Answer:

(i) 9. (ii) 25

Explanation:

(i) 2x² + x - 1

= 2 × ( 2×2) + 2 - 1

= 8 + 2 - 1

= 10 - 1 = 9

(ii) 6x² - 2x + 5

= 6 × ( 2× 2) - 2 × 2 + 5

= 24 - 4 + 5

= 24 + 1 = 25

Answer 2

Given:

X=2

First problem:

2x²+x-1

=> 2×2²+2-1

= >8+2-1

=> 10-1

=> 9

Answer:9

Second problem:

6x²-2x+5

=> 6×2²-2×2+5

=> 24-4+5

=> 24+1

=> 25

Answer: 25

Hope this helps ya buddy!

Have you read the Harry Potter books ?

:)