Question

(iii) 9x2 + (7a - 5)x + 25 = (3x + 5)2​

Answer 1

Answer:

9x 2+(7a−5)x+25=(3x+5) 2

=>9x 2+(7a−5)x+25=(3x) 2

+2(3x)(5)+(5) 2

=>9x 2

+(7a−5)x+25=9x 2

+2(3x)(5)+25

=>(7a−5)x=30x

=>7a−5=30

=>7a=35

=>a=5

Answer 2

Answer:

think answer is usefull