Math, asked by shree21032008, 7 months ago

8) Evaluate
if x=-1 and y=2 2x² - y2

Answers

Answered by keerthanap360

2

(3x4y2) (2x2y3)

(3 × 14 × 22) × (2 × 12 × 23)

(3 × 1 × 4) × (2 ×1 ×8)

= 12 × 16 = 192

Answered by vallamallashashank27

1

Answer:

410

Step-by-step explanation:

21²-22

=21×21-22

=441-22

=419

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