Question

Simplify:
(a+7) 2 +(a-7) 2​

Answer 1

Answer:

2a² + 98

Step-by-step explanation:

(a + 7)² + (a - 7)² = a² + 14a + 49 + a² - 14a + 49

= 2a² + 98

Hope it helps you:)

Answer 2

Question :

(a+7) 2+(a-7) 2

Normal Simplify:

= 7a × 2+ (-7a)×2

= 14a + (-14a)

= 14a + 14a

= 28a

Fraction Simplify:

= 7a² + (-7a)²

= 49a + (-49a)

= 49a + 49a

= 98a

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