Question

EVALUATE USIN IDENTITIES (x^2 + 7)^2

Answer 1

Question:

EVALUATE USINg IDENTITIES (x^2 + 7)^2

Solution:

$(x^2+7)^2$

Use the identity, $(a+b)^2 = a^2 + 2ab + b^2$

$(x^2)^2+2\times x^2 \times 7 + 7^2\\\\= x^4 + 14x^2 + 49$

Answer 2

Answer:

x⁴ + 14x² + 49

Step-by-step explanation:

(x² + 7)²

= (x²)² + 2×x²×7 + (7)² [(a + b)² = a² + 2ab + b²]

= x⁴ + 14x² + 49

Mark As Brainliest