Answer:
(a)- 2 [ ( - \frac { 1 } { 4 } ) - 12 ( - 1 ) ^ { 2 } ] - 5 [ 24 + 2 ( - 12 ) ] ^ { 2 }−2[(−
4
1
)−12(−1)
2
]−5[24+2(−12)]
2
Do the arithmetic.
Calculate -1−1 to the power of 22 and get 11.
-2\left(-\frac{1}{4}-12\right)-5\left(24+2\left(-12\right)\right)^{2}−2(−
4
1
−12)−5(24+2(−12))
2
Subtract one term from another.
Subtract 1212 from -\frac{1}{4}−
4
1
to get -\frac{49}{4}−
4
49
.
-2\left(-\frac{49}{4}\right)-5\left(24+2\left(-12\right)\right)^{2}−2(−
4
49
)−5(24+2(−12))
2
Multiply two factors together.
Multiply -2−2 and -\frac{49}{4}−
4
49
to get \frac{49}{2}
2
49
.
\frac{49}{2}-5\left(24+2\left(-12\right)\right)^{2}
2
49
−5(24+2(−12))
2
Multiply two factors together.
Multiply 22 and -12−12 to get -24−24.
\frac{49}{2}-5\left(24-24\right)^{2}
2
49
−5(24−24)
2
Subtract one term from another.
Subtract 2424 from 2424 to get 00.
\frac{49}{2}-5\times 0^{2}
2
49
−5×0
2
Multiply two factors together.
Multiply 55 and 00 to get 00.
\frac{49}{2}-0
2
49
−0
Add two terms together.
Subtract 00 from \frac{49}{2}
2
49
to get \frac{49}{2}
2
49
.
\frac{49}{2}
2
49
2
49
=24.5
(b)−a
2
b
2
−3a
3
b
2
a=−
3
1
b=−1
Step-by-step explanation:
Hope it helps u
FOLLOW MY ACCOUNT PLS PLS
