Question

the value of 2.3 whole cube minus 0.0 27 divided by 2.3 whole square + 0.69 + 0.09 is bracket is (6.28)(2.237)(4.437)(4.468)​

Answer 1

you mean, the value of {(2.3)³ - (0.027)}/{(2.3)² + 0.69 + 0.09} = ?

solution : numerator is (2.3)³ - (0.027)

can we write , 0.027 = 0.3 × 0.3 × 0.3 = (0.3)³

so, (2.3)³ - 0.027 = (2.3)³ - (0.3)³

from algebraic identity, a³ - b³ = (a - b)(a² + b² + ab)

so, (2.3)³ - (0.3)³ = (2.3 - 0.3){(2.3)² + (0.3)² + 2.3 × 0.3}

= 2{(2.3)² + 0.09 + 0.69}

= 2{(2.3)² + 0.69 + 0.09}

now, {(2.3)³ - (0.3)³}/{(2.3)² + 0.69 + 0.09}

= 2{(2.3)² + 0.69 + 0.09}/{(2.3)² + 0.69 + 0.09}

= 2

hence, answer is 2.

Answer 2

Answer:

Step-by-step explanation:.

you mean, the value of {(2.3)³ - (0.027)}/{(2.3)² + 0.69 + 0.09} = ?

solution : numerator is (2.3)³ - (0.027)

can we write , 0.027 = 0.3 × 0.3 × 0.3 = (0.3)³

so, (2.3)³ - 0.027 = (2.3)³ - (0.3)³

from algebraic identity, a³ - b³ = (a - b)(a² + b² + ab)

so, (2.3)³ - (0.3)³ = (2.3 - 0.3){(2.3)² + (0.3)² + 2.3 × 0.3}

= 2{(2.3)² + 0.09 + 0.69}

= 2{(2.3)² + 0.69 + 0.09}

now, {(2.3)³ - (0.3)³}/{(2.3)² + 0.69 + 0.09}

= 2{(2.3)² + 0.69 + 0.09}/{(2.3)² + 0.69 + 0.09}

= 2

hence, answer is 2..