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? asked in Education & ReferenceHomework Help · 9 years ago

I have a math exam to do?I am in hurry?

ANALYSIS :

100x2+40x -21=?

a4+a3+a2 - 2a- 3=?

x4 - 10x2 y2 + 9 y4=?

X7+x6+x5+x4+x3+x2+x+1=?

(x -1)- x (x -1)=?

5x5 -5x (25x2 -144)=?

11x+15x – 14=?

A6-b6=?

A9 - b9=?

please help me.the numbers after alphabets are powers.

I am in 9th grade of school

1 Answer

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  • 9 years ago
    Favorite Answer

    100x2+40x -21=?

    (10x-3)(10x+7)

    a4+a3+a2 - 2a- 3=?

    (a+1)(a^3+a-3)

    x4 - 10x2 y2 + 9 y4=?

    (x+y)(x-3y)(x-y)(x+3y)

    X7+x6+x5+x4+x3+x2+x+1=?

    (x+1)(x^2+1)(x^4+1)

    (x -1)- x (x -1)=?

    -(x-1)^2

    5x5 -5x (25x2 -144)=?

    5x(x-4)(x-3)(x+3)(x+4)

    11x+15x – 14=?

    2(13x-7)

    A6-b6=?

    (A+b)(A-b)(A^2+Ab+b^2)(A^2-Ab+b^2)

    A9 - b9=?

    (A+b)(A-b)(A^2+Ab+b^2)(A^6-A^3b^3+b^6)

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