Question

$x {}^{2} + 4x { }^{2} + 3x {}^{2} =$
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Answer 1

Step-by-step explanation:

${x}^{2} + 4 {x}^{2} + 3 {x}^{2} = ?$

$5 {x}^{2} + 3 {x}^{2} =$

$8 {x}^{2}$