Question

use suitable identity and elevate (2x+5)2​

Answer 1

Step-by-step explanation:

Identity:

${(x + y)}^{2} = {x}^{2} + {y}^{2} + 2xy$

Therefore,

${(2x + 5)}^{2} = {(2x)}^{2} + 2 \times 2x \times 5 + {(5)}^{2}$

$= 4 {x}^{2} + 20x + 25$

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