Question

Find thevalu of3a(5a-4)+3 for a=-1
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Answer 1

Answer:

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Step-by-step explanation:

7+2(a+1)−3a=5a

⇒ 7+2a+2−3a=5a

⇒ 9−a−5a=0

⇒ 9−6a=0

⇒ 6a=9

⇒ a=

6

9

∴ a=

2

3

Answer 2

Answer:

30

Step-by-step explanation:

Putting A = - 1 in equation

=3(-1)(5(-1)-4)+3

= -3(-9)+3

= 27+3

=30