It is known that the value of square + 4x-2 of algebraic formula x is 3, 1. Find the square of the algebraic formula 2x + 8x-5 2. Find the value of the square of the algebraic expression - 3x - 12x - 1

It is known that the value of square + 4x-2 of algebraic formula x is 3, 1. Find the square of the algebraic formula 2x + 8x-5 2. Find the value of the square of the algebraic expression - 3x - 12x - 1

Known
x²+4x=5
(1)2x²+8x-5
=2(x²+4x)-5
=2x5-5
=5
(2)-3x²-12x-1
=-3(x²+4x)-1
=-3x5-1
=-15-1
=-16

Elden Ring Premiere

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