Penjelasan:
= 2(x²) - 6³ + 4x
= 2(8²) - (6.6.6) + 4(8)
= 2(64) - (36.6) + 32
= 128 - 216 + 32
= -88 + 32
= -56
__
= πr²
= 3,14 × 20²
= 314 × 2²
= 314 × 4
= 1.256 cm²
1. 2(x²) - 6³ + 4x
x => 8
2(8²) - 6³ + 4(8)
= 2( 8 × 8 ) - ( 6 × 6 × 6 ) + ( 4 × 8 )
= 2(64) - ( 36 × 6 ) + 32
= ( 2 × 64 ) - 216 + 32
L = π × r × r
L = 3,14 × 20 × 20
L = 62,8 × 20
L = 1.256 cm²
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Penjelasan:
= 2(x²) - 6³ + 4x
= 2(8²) - (6.6.6) + 4(8)
= 2(64) - (36.6) + 32
= 128 - 216 + 32
= -88 + 32
= -56
__
= πr²
= 3,14 × 20²
= 314 × 2²
= 314 × 4
= 1.256 cm²
1. 2(x²) - 6³ + 4x
x => 8
2(8²) - 6³ + 4(8)
= 2( 8 × 8 ) - ( 6 × 6 × 6 ) + ( 4 × 8 )
= 2(64) - ( 36 × 6 ) + 32
= ( 2 × 64 ) - 216 + 32
= 128 - 216 + 32
= -88 + 32
= -56
L = π × r × r
L = 3,14 × 20 × 20
L = 62,8 × 20
L = 1.256 cm²