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l 2 + m 2 + m 2 + n 2 + 1 2 + n 2 + 21m + 2mn + 2nl _______________________________________ 21 2 + 2m 2 + 2n 2 + 21m + 2mn + 2nl = 2(l 2 + m 2 + n 2 + lm + mn + nl) _________________________________

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Algebraic Expressions and Identities

Short Answer Type

11.

3 - pq + pr - rp

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12.

space space space space space space space straight x over 2 plus straight x over 2 minus xy

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13.

03.a - 0.6ab + 0.5b

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14.

Classify the following polynomials as monomials, binomials, trinomials. Which polynomials do not fit in any of these three categories?

x + y, 1000, x + x²+x³+x^4,7 + y +5x, 2y - 3y²+4y² , 4z -15x², ab +bc + cd +da, p²q + pq², 2p + 2q.

118 Views

15.

Add the following:

ab - bc, bc - ca, ca - ab

172 Views

16.

Add the following:

a - b + ab, b - c + bc, c -a +ac

126 Views

17.

2p²q²- 3pq + 4, 5 +7pq - 3p²q²

233 Views

18.
Add the following:

1²+ m², m²+ n² , n² +l², 21m + 2mn + 2nl

        l²       + m²
                  + m²       + n²+ 1²                      + n²
^{+ 21m   + 2mn + 2nl}
^{_______________________________________}
21²+ 2m²+ 2n²+ 21m + 2mn + 2nl
= 2(l²+ m²+ n²+ lm + mn + nl)
_________________________________