Three mark exercise problems VII — task. Mathematics State Board, Class 7.

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Add and find the degree of the following expressions.

(i)

$(k^2 - 25k + 46)$ and

$(23 - 2k^2 + 21k)$

Answer:

Expression

$=$

Degree

$=$

(ii)

$(3m^2n + 4pq^2)$ and

$(5nm^2 - 2q^2p)$

Answer:

Expression

$=$

Degree

$=$

Answer variants:

$8m^2n + 2pq^2$

$k^2 + 4k + 69$

$-k^2 - 4k + 69$

$8m^2n - 2pq^2$

$k^2 - 4k + 69$

$3$

$1$

$5$

$2$

$4$

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