Simplify 4x(7x²+15) and find the value for X=-1
Answers
Answered by
0
Step-by-step explanation:
4x(7x²+15)
= 4×1((7×1²)+15)
=4(7²+15)
=4(49+15)
=4(64)
=4×64
=256
HOPE IT HELP YOU
Answered by
4
Step-by-step explanation:
given equation is,
4x( 7x² + 15)
28x³ + 60x ---( 1 )
now,
putting X = -1 in eqn ( 1 )
28(-1 )³ +60(-1 )
- 28 - 60
= -88 ans
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