Subtract:
4) −3a
2b from 2a
2b
5) 3y − 5z from 6z − 4y
6) x5x
2 + x − 11 from x
2 − 2x + 8
7) a
3 − 3a
2 from b
3 − 3b
2
III. Multiply:
8) (−6a
2b) by (
1
2
ab
2
)
9) (3x
2y − 2xy2 + 5xy − 6) by 4xy
10) (x − 3) by (x + 8)
11) (4x
2 + xy + 9y
2
) by (2x − 3y)
12) (3x
2 + 4x − 5) by (4x
2 − 7x + 2)
IV. Simplify (a − b)(a − b) − (a + b)(a − b)
V. Find the degree of (−
1
20
x
4y
3
) × (−5x
7y
2
)
VI. If (x + 4)(x + 1) − (x − 1)(x − 2) = 0, what is the value of x?
Answers
Answered by
0
Answer:
Let the total money of the man be Rs. x.
Money got by wife = Rs.
2
x
Money got by son = Rs.
3
x
Money got by daughter = Rs. 15,000
x−(
2
x
+
3
x
)=15000
⟹
6
6x−3x−2x
=15000
⟹
6
x
=15000
x=90,000
Therefore, total money that man leaves is Rs. 90,000.
Now, share of wife Rs.
2
x
= Rs
2
90000
= Rs. 45,000.
and share of son = Rs.
3
x
= Rs
3
90000
= Rs. 30,000.
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