Question

plz give right answers fast.......​

Answer 1

Answer:

kindly see the answer below...

Step-by-step explanation:

Here,

3)

${a}^{2} \times {a}^{22} \times {a}^{2}$

the power of a will be

${a}^{26}$

4)

$5x \times 4y$

$= 20xy$

1)

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

$= 12 {x}^{2} - 15x + 3$

when x=3

then,

$= 12 \times 9 - 15 \times 3 + 3$

$= 108 - 45 + 3$

$= 66$

2)

$3y(2y - 7) - 3(y - 4) - 63$

$= 6 {y}^{2} - 21y - 3y + 12 - 63$

$= 6 {y}^{2} - 24y - 51$

when y=-2

then

$= 6 \times 4 + 48 - 51$

$= 21$

3)

${103}^{2}$

$= 103 \times 103$

$= 10609$

thanks a lot..

plz♥..if this is helpful..

Answer 2

Answer:

kindly see the answer below...

Step-by-step explanation:

Here,

3)

${a}^{2} \times {a}^{22} \times {a}^{2}$

the power of a will be

${a}^{26}$

4)

$5x \times 4y$

$= 20xy$

1)

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

$= 12 {x}^{2} - 15x + 3$

when x=3

then,

$= 12 \times 9 - 15 \times 3 + 3$

$= 108 - 45 + 3$

$= 66$

2)

$3y(2y - 7) - 3(y - 4) - 63$

$= 6 {y}^{2} - 21y - 3y + 12 - 63$

$= 6 {y}^{2} - 24y - 51$

when y=-2

then

$= 6 \times 4 + 48 - 51$

$= 21$

3)

${103}^{2}$

$= 103 \times 103$

$= 10609$

thanks a lot..

plz♥..if this is helpful..