Math

21. Find the square root ±√121
Is it 11?

28. Use the distributive property to simplify x(4x^2+x+4)

38. 4/5 + 2/10
Is it 3/5 ?

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  1. 21. Find the square root ±√121
    Is it 11?

    yes, 11^2 = 121

    28. Use the distributive property to simplify x(4x^2+x+4)

    4 x^3 + 4 x^2 + 4 x

    38. 4/5 + 2/10
    Is it 3/5 ?

    No 4/5 + 1/5 = 5/5 = 1

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