Question

$(8 + 9 + 6) { }^{2}$
x+y+z+ whole square
apply this formula

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Answer 1

Answer:

535

${(8 + 9 + 6 ) }^{2} = \\ {8}^{2} + {9}^{2} + {6}^{2} + 2(8 \times 9 + 9 \times 6 + 6 \times 8) \\ = 64 + 81 + 36 + 2(72 + 54 + 48) \\ = 187 + 2 \times 174 \\ = 187 + 348 \\ = 535$

Answer 2

ANSWER:

(x+4) (x+10) = x²+ (4+10) x + 4×10

or, (x+4) (x+10) = x²+ 4x + 10x + 40

or, x² + 14x + 40 = x² + 14x + 40

This is a unity.